Heritage Watch Manufactory Viator

The newly introduced Viator is the fourth model from Swiss watch maker Heritage Watch Manufactory. Established in 2010, this prestigious mechanical watch brand from Neuchâtel, after the successful launch of Tensus, Magnus and Centenus models, now introduces a new timepiece that features GMT function: a useful tool for world travelers.

Equipped with in house developed cal. 840 movement, the Viator model unites the art of traditional watch-making, unheard-of precision and extraordinary longevity with the advantages of a GMT watch.

Constructed by master watchmaker Karsten Fraessdorf, the Viator is a completely in-house developed timepiece. As a GMT watch, the Viator displays a second time zone underneath the 12 o’clock numerals.
The immediately jumping hour allows synchronization in just a few seconds through its quick-change mechanism. Its extraordinary movement incorporates three patented mechanisms for fine regulation and hence for unheard of accuracy: Vivax precision balance, special Sectator mechanism for fine regulation of the escapement and Tenere balance cock.

The technical perfection of the movement concept of the Viator finds its counterpart in the restrained, elegant design – again penned by Eric Giroud. The dial of the Viator fascinates through its nuanced interplay of space and volume, lending the depth of its reliefs a particular character.

Inspired by the convex enamelled dials of 18th century Parisian pendulum clocks, the avant-garde dial of the Viator, with its six concentrically arranged applications, perfectly meshes with the case and the crystal and imparts an air of timeless classicism. The curved hands complement this design, following the curvature of the glass and strengthening the depth of the reliefs of the Viator. In the spirit of the housings used to protect valuable clock movements during chronometry competitions, the design of the casing visualises its origins. With its air of noble discretion and a timelessly classic appearance, the design has notably succeeded in capturing the uniqueness of the mechanism and the inner values of the Heritage Watch Manufactor timepieces in a visual sense.

With its functional and clean lines, it reflects above all the mechanical character of the chronometer. Each detail of the decoration has its origin in Switzerland.“

Technical details

Functions
3-hand watch / jumping hour disc for second time zone
Hours / minutes / small seconds (at 6 o’clock)
Immediate jumping hours (below 12 o’clock)

Casing
Design: Eric Giroud
Casing variants: Polished / satinised steel
Waterproof to: 50 m
Length over strap-holding bridges: 53.10 mm
Casing diameter: 42.50 mm
Casing height, total: 13.05 mm
Casing height, without crystal: 10.30 mm
Crystal: Domed sapphire glass
Casing back crystal: Flat sapphire glass

Dial
Design: Eric Giroud
Shock resistance: Dial positioned by means of pins, screwed directly onto the movement
Dial variants: Brass, with brass applications
Hands: Hardened steel

Bracelet
Leather / alligator, with pin buckle
Bracelet size: Strap-holding bridge: 22 mm / buckle: 20 mm

Movement
Independent manufacture Calibre: Cal. 840, 3 patents pending, Fully hardened parts, 100 % Swiss Made
Caliber ref: HWM Cal. 840
Diameter: 38.30 mm
Height: 6.10 mm
Jewels: 40

Escapement
Type: Swiss lever escapement; capillary phase to improve oil retention
Balance: Mass-regulated Vivax balance / 16 mm / patent pending
Balance spring: Over-coil hairspring (Breguet)
Fine regulation: Tenere fine adjustment / patent pending
Semi-oscillations: 18 000 /
Mainspring barrel diameter: 17.40 mm
Moment of inertia: h 110 mgcm²

Gear train
Gear tooth system: Cycloid gear teeth
Pinions: Fully hardened steel pinions
Gears: Copper beryllium
Mainspring barrel: Copper beryllium
Screws: Steel, blued and polished
Power reserve: 50 hours
Decoration: Diamante beveled Movement plates

HERITAGE WATCH MANUFACTORY FIRMAMENTUM

Neuchâtel based Swiss watch manufacturer HERITAGE WATCH MANUFACTORY presents FIRMAMENTUM, a unique measurement and navigation instrument, which will be unveiled at Basel world 2012.

Fully in the tradition of timepieces used for observation, the FIRMAMENTUM, with Calibre No. 870, is an extraordinary timepiece designed for measurement and navigation.

As well as the classic method of measuring time, with the aid of the hour angle it permits measurement of the movement of the sun and planets in our solar system, as well as that of stars.

Developed the by master watchmaker Karsten Fraessdorf, the FIRMAMENTUM combines, in two displays, measurement of the hour angle based on our solar time with that based on the stars – the sidereal hour angle. Due to a unique mechanism with a variable-speed gear train, one of the displays has been designed to be variable, and can switch between solar and sidereal time by means of a pushbutton.

Accordingly, FIRMAMENTUM not only permits the simultaneous observation of two heavenly bodies within our solar system, but also the observing of the sun or a planet, or even a star outside the solar system. Moreover, in parallel, the hours minutes and sub-seconds can be read off just as on a normal watch. The fixed solar time display has in addition been conceived such that it can be additionally used as an adjustable second time zone with a 24-hour display accurate to the minute.

The FIRMAMENTUM also has an integrated function that, via a second pushbutton, synchronizes the time in accordance with a time signal. The power reserve indicator brings the underlying data of the watch to the fore. A stop lever halts operation of the watch movement after a running time of 56 hours.

This allows FIRMAMENTUM to not only provide exact navigation and determination of position for nautical and flying purposes, but also offers a much simplified basis for astronomy. Both requirements are aided by the unusually designed dial, which not only shows the usual methods of navigation but also permits the solar or sidereal hours and minutes used by astronomers to be read off.

With its restrained and discreet design, the dial of Firmamentum directly shows the different values in degrees according to the various navigation methods that are possible with this watch. Anchored in the traditions of navigation, these permit determination of position according to azimuth, the equatorial method and the ecliptic system.

The second method of measurement, the so-called equatorial method, is the measurement of latitude. The latitude corresponds to the circle upon which can be found the visible horizon of the observer, the true horizon. One speaks of a parallel of latitude when referring to a circle parallel to the Equator. When one approaches the North Pole or the South Pole ever more closely, the diameter of the parallel of latitude becomes smaller. It is split into 360 degrees. All meridians leading from the North Pole to the South Pole are equally long. The zero point is the line from the North to the South Pole that by definition passes through the Greenwich Observatory.

It is known as the Prime Meridian and all other meridians, including the one passing from North to South through the observer’s own location, are removed from this by up to + 180 degrees in a westerly direction and – 180 degrees in an easterly direction. In the equatorial method, the meridians are projected outwards from the centre of the Earth onto an imaginary heavenly circle and the first coordinate is provided by the degrees measured. In this method, the meridians are called declination or hour circles.

These lines start from the Equator and go up to +90 degrees in a northerly direction and up to – 90 degrees in a southerly direction as if they were marked on a globe. The spatial depth, i.e. the differing distances from the stars to the earth, does not play a role here. The second coordinate is given by the Equator with its 360-degree divisions. This coordinate is known as right ascension and is given from the North to the West, South and East from 0 degrees to 360 degrees.

The third system that of the ecliptic, has the same coordinate system as the second system, the equatorial. However both coordinate axes are shifted by the value of the ecliptic. The ecliptic is the difference (the angle) between the orbit of the Earth around the Sun and the Sun’s equator. The right ascension then gives the longitude, the declination the latitude.

Hour Angle
Every hour angle, independently of its frame of reference and numerical system, consists of a 360-degree circle. Each degree is divided into 60 units, the so-called arc minutes. These arc minutes are identified by a single quote (60′) and in their turn these are subdivided into 60 arc seconds (60″). These units can however vary, for example in nautical systems. 360 degrees times 60’gives 21 600′, and this result is taken to divide the circumference of the Earth at the Equator. This gives a value of 1 852 metres per arc minute. A nautical sea mile is therefore 1/21 600th of the Earth’s circumference at the Equator. This sea mile is subdivided into 10 cable lengths, each of 185 metres. This means that when a ship on the Equator has travelled one sea mile, it has also travelled one arc minute (1′).

Difference between Solar and Sidereal Time
Due to the rotation of the Earth on its own axis and the same direction of rotation around the sun, this gives the effect that within our solar system a year consists of 365 sun- and planet-rises.

However outside our solar system, 366 sun- and planet-rises are measured in the same period. The system of time that splits the year into 365 days is thus called solar time, and that which splits a year into 366 days is known as the sidereal time. This results in a daily difference of approximately 4 minutes between both time systems. Accordingly, the length of one sidereal day is 23 hours, 56 minutes and4.0905 seconds. The special Firmamentum gear train that measures the difference between solar and sidereal time is so precise that the difference per day is only 0.0005 seconds.

Methods of Determining Position
There are different ways of measuring one’s position on the Earth’s surface. The first, and the most natural way of observing this, is that of the azimuth. The basis for this is given by the location of the observer. He observes the horizon and, with the help of a device that measures degrees — a sextant — he determines the height of a heavenly body above the horizon as he sees it in front of him. When determining terrestrial locations, things that stand out in the landscape or buildings can be used as the starting point. This gives the first coordinate. For the North direction it is given from 0 to + 90 degrees, and from the South direction from 0 to – 90 degrees.

Technical details
Functions
Hour angle instrument for the observation of heavenly bodies by means of 13 hands with two additional displays
Hour angle variable for sidereal and solar time, arcdegrees, arcminutes, 5 / 100 arcseconds
Solar time hour angle display in arcdegrees, arcminutes, 5/100 arcseconds
Power reserve display with balance wheel stop mechanism
Status display for basic regulation of Vivax balance wheel
Display of solar time as astronomical time
Second time zone settable to one minute of accuracy
Time in solar or sidereal time
Status of sidereal or solar time with variable hour angle, synchronisation mode

Movement
Independent manufacture Calibre: Cal. 870
3 patents pending
Diameter: 38.90 mm
Thickness: 7.50 mm
No of parts: 483
Jewels: 92
Escapement: Swiss lever escapement; capillary phase to improve oil retention
Balance: Mass-regulated Vivax balance / 16 mm / patent pending
Balance spring: Over-coil hairspring (Breguet)
Fine regulation: Tenere fine adjustment / patent pending
Semi oscillations: 18 000 / h
Mainspring barrel diameter: 17.40 mm
Moment of inertia: 110 mgcm²

Gear train
Gear tooth system: Cycloid gear teeth
Pinions: Fully hardened steel pinions
Gears: Copper beryllium
Mainspring barrel: Copper beryllium
Screws: Steel, blued and polished
Power reserve: 56 h

Decoration
Movement plates: Hand bevelled

Case
Designed by: Eric Giroud
Material: Polished / satinised steel
Water resistance: 50 m
Diameter: 44.50 mm
Thickness: 15.35 mm (with out crystal: 11.60 mm)
Crystal: Domed sapphire glass
Caseback: Flat sapphire glass

Dial
Designed by Eric Giroud
Dial positioned by means of pins, screwed directly onto the movement
German silver plate and white gold applications
Hands: Hardened steel

Bracelet
Leather / alligator, with pin buckle
Strap-holding bridge:  24 mm / buckle:  20 mm

Heritage Watch Manufactory CENTENUS

HERITAGE WATCH MANUFACTORY, the newly established Swiss watch manufacture presents its third timepiece: CENTENUS. By introducing this brand new timepiece which is equipped with in-house developed cal. 888 movement,the young Swiss watch manufactory pays homage to Chinese system of measuring time.

The CENTENUS will make its debut at Baselworld 2011, and just as the TENSUS and MAGNUS models, this new timepiece fulfils the need for the highest precision. Moreover it combines occidental time system with traditional Chinese system of measuring time.

The Centenus is an extraordinary watch constructed by master watchmaker Karsten Fraessdorf . Based on the innovative development of the Magnus movement, even the basic concept, with its unique precision balance, its subtly engineered mechanisms for regulation of the escapement, the balance and the balance wheel itself, is impressive. But at the same time, the Centenus is much more than the sum of these absolutely precisely constructed mechanisms. It really is a Chinese watch in the true sense of the word: far more than just paying homage to all things Chinese, it actually displays the traditional Chinese system of measuring time as well as simultaneously indicating the current system.

Already introduced more than 3000 years ago, the Chinese subdivision of a day into 100 units represents the first decimal system in the world.The CENTENUS displays the traditional Chinese system of measuring time as well as simultaneously indicating the Western system. The figures on the dial underneath the twelve o’clock numerals display zodiacal icons showing the Twelve Earthly Branches that represent the Chinese arrangement of the day into twelve units, each being called a ‘shíchén’. The larger of the two dials at the nine o’clock position reflects the Chinese division of the day into 100 units of time, each one being a ‘kè’. Each kè represents 14 minutes and 24 seconds in our time system. The small dial at the nine o’clock position reflects the subdivision of a kè into 60 units, the unit being known as an ‘old fen’.

The technical perfection of the movement concept of the CENTENUS finds its counterpart in the restrained, elegant design of Eric Giroud. With its noble discretion and classic design elements, the CENTENUS perfectly matches the current collection from this Swiss watch manufactory.. With its noble discretion and classic design elements, the Centenus perfectly matches the understatement of the true connoisseur.

Technical details

Functions
5-hand watch
Traditional chinese time system
Jumping Chinese hour Hours ,Minutes, Small seconds (at 6 o’clock)

Movement
Independent manufacture Calibre: Cal. 888
3 patents pending
Fully hardened parts
100 % Swiss Made
Calibre : Nº HWM Cal. 888
Diameter : 38.30 mm
Height : 6.10 mm
Jewels: 48
Escapement type : Swiss lever escapement; capillary phase to improve oil retention
Balance: Mass-regulated Vivax balance / 16 mm / patent pending
Balance spring; Over-coil hairspring (Breguet)
Fine regulation: Tenere fine adjustment / patent pending
Semi-oscillations: 18 000 / h
Mainspring barrel diameter: 17.40 mm
Moment of inertia: 126 mgmm
Gear tooth system: Cycloid gear teeth
Pinions: Fully hardened steel pinions
Gears: Copper beryllium
Mainspring barrel: Copper beryllium
Screws: Steel, blued and polished
Power reserve: 50

Case
Designed by Eric Giroud
Casing variants: a) Polished / satinised steel b) White gold or red gold
Waterproof to 50 m
Length over strap-holding bridges: 53.10 mm
Casing diameter: 42.50 mm
Casing height, total: 13.05 mm
Casing height, without crystal: 10.30 mm
Crystal: Domed sapphire glass
Casing back crystal: Flat sapphire glass

Dial variations
Traditional Chinese Time
a) Brass, with gold applications / tracery: anthracite (steel casing)
b) Gold, with gold applications / tracery: anthracite (gold casing)

Bracelet
Leather / alligator, with pin buckle

HERITAGE WATCH MANUFACTORY

The HERITAGE WATCH MANUFACTORY is a brand new star in Swiss traditional watchmaking. The company is headquartered in the Swiss city of Neuchâtel and makes high-precision mechanical watches in strictly limited quantities. Characteristic of these chronometers are their extraordinary longevity and a timekeeping accuracy that completely redefines the previously held understanding of precision in mechanical watches. In order to produce these chronometric masterpieces, the Manufactory, established in 2010 and in private possession, works exclusively with movements it has itself conceived and constructed in years of development.

FIRMAMENTUM by HERITAGE WATCH MANUFACTORY

Heritage Watch Manufactory : Company Profile
The Heritage Watch Manufactory produces extremely precise mechanical wristwatches. In order to guarantee the outstanding accuracy and extraordinary longevity that sets these timepieces apart, the company works only with movements that it has itself designed and with very carefully selected materials. It goes without saying that these movements are only to be found in chronometers made by the Heritage Watch Manufactory.

Heritage Watch Manufactory : Logo

The company, which is privately owned, was founded in the Swiss city of Neuchâtel in September 2010. To ensure that every single timepiece incorporates not only perfect materials and workmanship but also the most exquisitely precise adjustment, manufacturing is strictly limited. Heritage Watch Manufactory creates watches for connoisseurs who have succumbed to the fascination of mechanical techniques and the true art of chronometry. In due deference to this philosophy, the company does not rely on flamboyance for the look of the timepieces, but on understatement — and the knowledge of the genuine aficionado.

Master watchmaker: Karsten Fraessdorf
Master watchmaker Karsten Fraessdorf is responsible for the concept behind the Heritage Watch Manufactory chronometers. In recent years he has been repeatedly successful in developing individualistic movements possessing their own unmistakable features for various companies.

Karsten Fraessdorf

In the concept developed for the Heritage Watch Manufactory movements he has, after several years of development time, now also succeeded — in setting a milestone on the way to construction of the perfectly precise mechanical timepiece. Following the traditions of the original craft of watchmaking, the speed of the balance is set at 18,000 semi-oscillations per hour. This makes the balance not only considerably more stable and durable, it also consumes less energy. The balance itself is just as much an independent development as are the various fine adjustment mechanisms that permit perfect regulation. For the Tensus model, Karsten Fraessdorf has in addition designed an own constant-power escape mechanism as well as special twin mainspring barrels.

Tensus by Heritage Watch Manufactory

Head Designer : Eric Giroud
The renowned Swiss product and watch designer Eric Giroud is responsible for the Eric Giroud design of the chronometers. Giroud, whose creations have in past years gained numerous awards, followed his own completely unique approach in the design of the Heritage Watch Manufactory timepieces.

Eric Giroud

The casing design is directly inspired by the protective cases used to shield the valuable movements when entered in chronometry competitions of the past. The overall appearance is subtly harmonised, and the balanced relationship of satin and polished surfaces achieves a luxurious yet restrained look. This same form of understatement is evident in the dial design. The business-like classic dial faces of the Magnus Classic and the Tensus serve to emphasise the technical finesse of the chronometer.

Magnus Contemporaine

The dial of the Magnus Contemporaine, interpreted in modern fashion, is differentiated by a nuanced interplay of space and volume. The convoluted hands are also distinctively styled, following the curvature of the glass, the hands being styled as quill pens on all models to represent the idea of time to come that is always being created but is yet to be recorded. Every detail of the smoothly finished outward appearance has its origins in Switzerland, and in the Tensus the angularity of the finish has been refined by hand.

Heritage Watch Manufactory : Patents
The extraordinary accuracy of the movements of Heritage Watch Manufactory timepieces are to a large extent due to five precision engineering developments, patents have been applied for. The mass- regulated Vivax balance is at the heart of all of the chronometers. With a diameter of 16 mm and a mass inertia of 126 mgmm², two affixes are used to change the static and dynamic mass inertia, thus keeping isochronous deviation permanently under control.

Vivax balance

The balance hairspring itself is fitted with the specially developed Tenere fixation system, allowing precise fine adjustment of the hairspring while at the same time eliminating the negative influence of pinning and possible damage.

Tenere fixation system

The Sectator mechanism for adjustment of the escapement lever under the balance permits the watchmaker, for the first time ever, to adjust the escapement perfectly.

Sectator mechanism

Over and above this, the Tensus model counteracts the problem of decreasing mainspring power inherent in mechanical watches — and the resulting deviations of the movement — with the Sequax escapement and a constant power drive. This innovative escapement supplies the balance with a constant and unvarying supply of power, therefore eliminating fluctuations in the oscillation amplitude.

Sequax escapement

The Pariter twin mainspring barrels used in the Tensus are also of the company’s own design and construction, minimising energy losses due to friction on the bearing surfaces. Following this principle, the power reserve of the Tensus is also designed to be smooth-running due to the incorporation of a differential.

Pariter twin mainspring barrels

The unprecedented longevity of the timepiece is in part also due to the precision of the movement. This is achieved through the use of cycloid teething only for the gear trains and fully hardened gearwheels and pinions. Moreover, both the independently developed escapement of the Tensus and the Swiss lever escapement of the Magnus display optimised oil retention due to a capillary phase.

Vivax Balance
The oscillations of a balance subdivide time into units that are always the same. Correspondingly, the precision of a watch depends on the regularity of these oscillations. Non constant influences such as the decrease in power supplied by the mainspring, as well as changes in the position when being worn (and the resulting variations in the friction conditions), can influence the stability of oscillation of the balance. In order to also be ableto control these influences through the balance itself, regulating screws are positioned on the balance wheel periphery. Changing the position of these screws changes the moment of inertia of the balance and influences the escapement accuracy.

The Vivax balance, specially developed by the Heritage Watch Manufactory, also contains so-called affixes that are attached like arms to the balance wheel periphery. As the speed of oscillation of the balance wheel increases, centrifugal force causes these affixes to open slightly. They fulfil two functions: On the one hand, they serve to hold additional mass screws. This change in weight increases the speed effect described. On the other, the screws can, depending on the need for regulation, be positioned more closely to, or further away from, the fulcrum point of the affixes and thus additionally influence the speed. As a rule, there are two screws for five possible positions. Through this effect, the mass inertia of the balance increases and hereby independently reduces its frequency; it therefore self-regulates back to the original oscillatory speed. Through this mechanism, the Caspari effect (so-called isochronous deviation) becomes easier to control over the long term — as the amplitude of oscillation of the balance wheel changes, a higher temporal regularity of the oscillation itself is achieved.

Pariter Twin Mainspring Barrel
The mainspring barrel of a watch serves to store energy and to transmit this via the gear train to the balance so that this can maintain its speed of oscillation. For this purpose, the mainspring barrel is fitted with a coiled spring that tensions when the watch is wound and transmits the stored energy via the gear train to the balance. In order to achieve the greatest possible storage of energy and power reserve of the watch, the Pariter twin mainspring barrel contains two springs. These springs are positioned independently of one another and are separate, but both act on the same spring core in the barrel shaft. The attachment point of both springs to the shaft is however displaced by 180 degrees.

This displacement of the point of contact of the upper and lower springs relative to the shaft results in force being applied not just to one side of the shaft, but to two sides displaced through 180 degrees. The one-sided force normally applied to the shaft and the increased friction due to the tipping tendency of the mainspring barrel is cancelled — wear and friction loss are therefore considerably reduced.

Tenere Balance / Hairspring Retainer
The escapement of a watch serves to position the balance wheel and attach the hairspring. The hairspring is in many cases attached by gluing it or fixing it with a pin. This generally deforms and damages the hairspring, negatively affecting accuracy. Due to this, later fine adjustment is often difficult and requires replacement of the hairspring.

The specially developed Tenere system exhibits a mechanism that permits the end of the hairspring to be clamped between two surfaces, leaving it completely undamaged. The length of the hairspring can also be later adjusted as required. A further innovative mechanism permits the effective length of the hairspring and its fulcrum point to be shifted. This has a considerable effect on differences in deviations due to the watch being in the vertical or horizontal position and is an effective means of keeping the so-called Grossman effect under control. This mechanism can also be used to finely adjust the symmetry of the hairspring.

Sectator Fine Adjustment Mechanism
A precise escapement is an essential criterion for the accuracy of a watch. The escapement is constrained by various mechanisms, for example the stop pins. The disadvantage of these conventional methods is that they lead either to irreversible deformation when adjusting individual parts or imprecise results in spite of a complicated construction. They more often lead to the striking points being tilted laterally and therefore not being presented to the stop surfaces at the right angle. Depending on the position, the necessary up and down play of the escape anchor then gives different degrees of opening for the anchor. This again can be a further cause for a deviation in accuracy.

The Sectator mechanism developed by the Heritage Watch Manufactory allows the escapement to be very precisely and separately constrained on both the input side and on the output side. Adjusting the constraint of the escapement is carried out by means of a lever arm that is adjusted through being moved by a screw held against the lever arm by a spring. The screw is adjusted by means of holes drilled sideways in the screw head. These screws can be accessed both from the back and from the dial side. The Sectator system allows the watchmaker to adjust the escapement with absolute precision through operations that are at any time reversible and that prevent deformation of the mechanism. In addition, easy access to the adjustment mechanism is guaranteed.

Sequax Mechanism with Constant Power
Ever since clocks became portable and an even and constant drive by means of the weights of stationary clocks was no longer practical, a constant supply of power to the escapement has been one of the main challenges in watchmaking. Every mainspring, no matter how good it may be, provides progressively less power as the energy stored in it is used up. Fundamentally, however, the greater the oscillation amplitude of the watch balance, the more accurate it is. Even automatically winding watches are only an intermediate solution, because as soon as the mainspring is no longer wound up by wearing, the power stored in the spring again decreases.

For this reason, the Heritage Watch Manufactory has developed a fundamentally different concept in which the balance is not driven by the mainspring but by a small spring between two anchor wheels. The actual mainspring only serves to re-tension the system immediately after a pulse is sent to the balance, i.e. five times a second. The anchor wheel driving the balance possesses no gear teeth and is therefore free from possible deviations in torque caused by the actual transmission train. Winding regularly every day results in a constant amplitude of balance oscillation and thus forms a perfect basis for the accuracy of the watch. The Sequax escapement consists of two anchor wheels and three anchors with six pallets.

Official website : http://www.heritage-watch-manufactory.com

Heritage Watch Manufactory Magnus Contemporaine & Magnus Classic

The Magnus by Heritage Watch Manufactory is a perfect watch and absolutely perfect timepiece for everyone who loves perfectly constructed mechanical objects in their purest form.

Its precision balance, the special mechanisms for fine regulation of the escapement, the balance cock and even the balance wheel are completely unique.

Magnus Contemporaine

This design is available in two variants — while the dial of the Magnus Contemporaine shows a perfectly executed interplay of space and volume, the Magnus Classic reflects the business-like finesse of the watch.

Magnus Classic

Technical details

Functions
– 3-hand watch
– Hours / minutes / small seconds (at 6 o’clock),

Movement
– Independent manufacture Calibre: Cal. 880
– 5 patents pending
– Fully hardened parts
– 100 % Swiss Made

Case
– Designed by Eric Giroud
– Variants: (a) Polished / satinised steel (b) White gold or red gold (Only for Magnus Classic)
– Water resistance: 50 m
– Length over strap-holding bridges: 53.10 mm
– Casing diameter: 42.50 mm
– Casing height, total: 13.05 mm
– Casing height, without crystal: 11.30 mm
– Crystal: Domed sapphire glass
– Casing back crystal: Flat sapphire glass

Dial
Designed by Eric Giroud
Shock resistance: Dial positioned by means of pins, screwed directly onto the movement

Dial Variants:
– Magnus Classic: Brass/ tracery: blue (steel casing) or Gold, with gold applications / tracery: anthracite (gold
– Magnus Contemporaine: Brass, with brass applications

Hands: Hardened steel

Bracelet
Leather / alligator, with pin buckle
Bracelet size: Strap-holding bridge: 22 mm / buckle: 20 mm

Movement Specifications
Calibre Nº: HWM Cal. 880
Diameter: 38.30 mm
Height: 6.10 mm
Jewels: 33
Escapement type: Swiss lever escapement; capillary phase to improve oil retention; capillary phase to improve oil retention
Balance: Mass-regulated Vivax balance / 16 mm / patent pending
Balance spring: Over-coil hairspring (Breguet)
Fine regulation: Tenere fine adjustment / patent pending
Mainspring barrel: Pariter twin mainspring barrel / patent pending
Semi-oscillations: 18 000 / h
Mainspring barrel diameter: 17.40 mm
Moment of inertia: 126 mgmm²

Gear train
Gear tooth system: Cycloid gear teeth
Pinions: Fully hardened steel pinions
Gears: Copper beryllium
Mainspring barrel: Copper beryllium
Screws: Steel, blued and polished
Power reserve: 50 h

Decoration
Movement plates: Diamante bevelled

Heritage Watch Manufactory Tensus

The Tensus four hands by Swiss watch maker Heritage Watch Manufactory is an absolutely precise timepiece.

With more than 300 individual parts, winding reserve indicator, a precision balance, special twin mainspring barrels and a triple escape mechanism with dual escape wheel and constant power, it is a true masterpiece of the art of horology.

The Tensus is the perfect watch for everyone who is not only captivated by the intricate mechanisms; it is also, with its exquisite embellishments, an exclusive understatement.

Technical details

Functions
4-hand watch (including power reserve)
Hours / minutes / small seconds (at 6 o’clock),
Power reserve (at 9 o’clock)

Movement
Independent manufacture Calibre: Cal. 880
5 patents pending
Fully hardened parts
100 % Swiss Made

Case
Designed by Eric Giroud
Variants: (a) Polished / satinised steel (b) White gold or red gold
Water resistance: 50 m
Length over strap-holding bridges: 53.10 mm
Casing diameter: 42.50 mm
Casing height, total: 13.95 mm
Casing height, without crystal: 11.20 mm
Crystal: Domed sapphire glass
Casing back crystal: Flat sapphire glass

Dial
Designed by Eric Giroud
Shock resistance: Dial positioned by means of pins, screwed directly onto the movement
Dial Variants: (a) Brass, with brass applications / tracery: blue (steel casing) (b) Gold, with gold applications / tracery: anthracite (gold casing)
Hands: Hardened steel
Bracelet: Leather / alligator, with pin buckle
Bracelet size: Strap-holding bridge: 22 mm / buckle: 20 mm

Movement Specifications
Calibre Nº: HWM Cal. 880
Diameter: 38.30 mm
Height: 7.00 mm
Jewels: 55
Escapement type: Sequax triple anchor escapement with double escape wheel and constant power / patent pending; capillary phase to improve oil retention
Balance: Mass-regulated Vivax balance / 16 mm / patent pending
Balance spring: Over-coil hairspring (Breguet)
Fine regulation: Tenere fine adjustment / patent pending
Mainspring barrel: Pariter twin mainspring barrel / patent pending
Semi-oscillations: 18 000 / h
Mainspring barrel diameter: 17.40 mm
Moment of inertia: 126 mgmm²

Gear train
Gear tooth system: Cycloid gear teeth
Pinions: Fully hardened steel pinions
Gears: Copper beryllium
Mainspring barrel: Copper beryllium
Screws: Steel, blued and polished
Power reserve: 60 h

Decoration
Movement plates: hand bevelled