Zeitwinkel 312° Automatic Watch

Zeitwinkel 312° watch is an elegant and modest timepiece having a classical, minimalistic design. The timepiece displays the hour and minute and no second hands or other indications. This classical timepiece is powered by Zeitwinkel manufacture movement ZW 0102.

This watch movement with automatic winding and 72 hour running time ensures that the owner will always receive precise information about the time of day. The luxurious design of this generously proportioned movement with German silver plates in order to forgo any kind of embellishment on the back of the watch.

The Zeitwinkel 312° was developed for those who see a watch as a reliable companion that precisely displays the time. One hand to display the hour and another for the minute – anything more is necessary. The result of intentionally omitting the second hand is the modest serenity that the Zeitwinkel 312° radiates.

Zeitwinkel 312° Automatic Watch
Image credit: Zeitwinkel Montres S.A./ FONDATION DU GRAND PRIX D’HORLOGERIE DE GENÈVE

The length of the hands was coordinated precisely to the minute markers and the indexes set at intervals of five minutes. The edges of the hands and indicators refract incident light in such a manner that a high contrast to the dial is achieved, always making the time easy to read.

The dial is accentuated with a fine latticework that can only be seen at certain angles. The crown of the Zeitwinkel 312° can be pulled out in several steps. Due to its easy-to-grip surface structure and ample dimensions, the watch can be wound easily and the time set precisely.

The Zeitwinkel caliber ZW 0102 is a mechanical manufacture movement with automatic winding. Developed by Zeitwinkel especially for watches from the first series, it is manufactured in small-quantity lots in Jura (Switzerland) with high precision machinery and meticulous diligence.

Zeitwinkel 312° Automatic Watch movement
Image credit: Zeitwinkel Montres S.A./ FONDATION DU GRAND PRIX D’HORLOGERIE DE GENÈVE

Zeitwinkel caliber ZW 0102 is a robust, accurate and versatile basic movement that can be equipped either with a sweep or a small second and has a relatively large date display as an option.

The running time is 72 hours. The movement has the formidable diameter of 30.4 mm, 30 jewels and a total of 257 components, a frequency of 28,800 oscillations, a Glucydur balance and a robust three-quarter plate that plays a significant role in the mechanical stability of the movement. All plates and bridges are made of German silver.

This material is noticeably harder than the brass that is usually used and requires the greatest precision in its manufacture and ornamentation. Zeitwinkel caliber ZW 0102 is chamfered and hand-decorated.

After thorough quality inspection and five-stage calibration, it is installed in house and subjected to a running test that lasts several days. Only when the measured accuracy lies within a strict tolerance range is the caliber ZW 0102 sent on its journey to a new owner together with its Zeitwinkel watch.

The case for the Zeitwinkel 312° was developed over a period of 14 months in precise accordance with the Zeitwinkel caliber ZW 0102 movement. It is constructed of 1.4435 steel alloy which, due to its high resistance to inter-crystalline corrosion and non-oxidizing acids, protects the valuable manufacture movement especially well. In addition, this alloy is especially well suited for products that are in continuous contact with the skin.

To attain interplay between the polished surfaces and those with a matte structure, the casings are prefabricated using precision machinery at a traditional German business and construction is then completed, primarily by hand.

In this process, 26 parts are assembled in more than 80 individual steps for each case. The case is water resistant up to a tested pressure of five bar due to the back cover, which is attached with six screws.

Zeitwinkel 312° Automatic Watch
Image credit: Zeitwinkel Montres S.A./FONDATION DU GRAND PRIX D’HORLOGERIE DE GENÈVE

Despite a diameter of 42.5 mm and a height of 10.97 mm, the Zeitwinkel case displays an elegant and well-proportioned appearance. The case’s unique design becomes immediately apparent the very first time you take a glance at the side of the watch.

In particular, the interplay of polished surfaces with strikingly structured, precisely worked areas provides a Zeitwinkel watch with its distinctive appearance. This clear-cut design is continued on the back, with its large window showing the movement, as well as in the design of the crown.

Sapphire glass is used on both the front and back sides of Zeitwinkel timepieces. The convex lunette crystal has a diameter of 35.4 mm. It has multiple anti-reflection coatings on the inside so that the hands do not reflect on the interior surface, and because a coating on the outside of the crystal could wear down.

The case back glass is flat and has an anti-reflection coating on the inside as well. As a result, the time can always be easily read, even under extreme lighting conditions. Both crystal and back plate glass are tightly inserted into the casing of the Zeitwinkel watch using a complex sealing system, ensuring that the watch is sealed up to a pressure of 5 bar.

On the back, there is an extraordinarily large (30.9 mm) window to match the manufacture movement, which also has the extraordinary diameter of 30.4 mm. This allows you to admire the details of the hand decorated inner workings of your Zeitwinkel watch, instead of an industrial retainer ring.

The crown of Zeitwinkel watch combines a high-quality exterior with excellent operating functionality. Due to its 12 grooves and large diameter, the crown is very easy to grip. With its easy pull, the crown allows you to set all the functions of the watch and then disappears into a precisely sunken, space-saving notch. Screw-drown crown is often difficult to handle and must always be wound completely to ensure that the watch remains sealed. The brand uses a multi-stage sealing system with dual O-rings.

Dial of Zeitwinkel 312° watch is sober and pure. Nothing distracts from the most basic and distinctive function of a watch: the reliable display of the time. Despite this, it is striking due to its discreet latticework of Zeitwinkel logos, which becomes apparent only when the watch is viewed from an angle.

The indexes set every five minutes and supplementing the minute markers, have the classic arrow shape and are coordinated precisely to the length of the hands. With their beveled edges, they always form a strong contrast to the dial, and are thus easily visible in all lighting conditions. Zeitwinkel 312° is available with a choice of a black or a silver-faced dial.

The hour and minute hands are carefully balanced and produced in one of the best specialized manufactures in Switzerland. It is precisely coordinated to the indexes and the minute markers for easy time reading.

The hands are diamond-cut to facilitate easy reading of time even in varying lighting conditions. This ensures that one side of the hand always reflects incident light in such a manner that there is a strong contrast to the dial. However the hands are not coated with any fluorescent compound by intention.

Technical details

Model: Zeitwinkel 312°

Case
Material: Stainless steel 316 L
Height: 11.7 mm
Diameter: 42.5 mm
Glass: Sapphire, convex & with anti-reflection on interior
Case: back Sapphire with anti-reflection on interior
Water resistance: 5 atm
Crown: Diam. 6.70 mm, bi-O-ring seal, 12 grooves

Dial
Galvanic black, Zeitwinkel logo background
Galvanic silver, Zeitwinkel logo background
Appliqués: facetted & diamond-worked
Hands: Facetted & diamond-worked

Movement
Caliber ZW0102, Manufacturer Zeitwinkel Montres S.A., CH St-Imier
Automatic
Diameter: 13½ lines, 30.40 mm
Height: 5.70 mm
Winding: Rotor, bi-directional
Running autonomy: >72 h
Bridge and plate material: German silver
Bearing jewels: 28
Balance: Glucydur
Spiral: Straumann
Frequency: (4Hz) 28,800 alternations/hour
Impact: Incabloc
Adjustment: Regulated in five stages

Decoration
Screws chamfered and polished
¾ plate and balance cock with Geneva
Stripes (Côtes de Genève)
Pearlage on interior surfaces of plates and bridges
Straight graining on wheel bridge and rotor edges of ¾ plate and bridges
Chamfered and polished

Functions
Display of hours and minutes

Strap
Brown or black leather Hand sewn calfskin leather strap with Kawless Louisiana alligator structure, Real Louisiana alligator full cut if desired
Black rubber strap
Width: 20 mm

Clasp
Leather strap: Folding clasp with Zeitwinkel engraving
Rubber strap: Folding clasp with applied logo