German fine watchmaking brand Moritz Grossmann presents a new TEFNUT model with a dial that has been hand silver-plated by friction.
The surface of the dial has a velvety, matt structure that has been created using a 19th century technique known as grain or silver-plating by friction, carried out by hand in the Moritz Grossmann ateliers.
Contrasting black elements serve to highlight the surface of the dial: all numerals and lettering, the minute scale and historic logo ‘M. Grossmann.’ dating from 1875 are set in black lacquer. The fine curve of the numerals matches the brown-violet annealed hands.
The new TEFNUT silver-plated by friction has a diameter of 39 millimetres. The case is available in either rose gold or stainless steel and has a classic, slimline silhouette.
The flat design makes it all the more comfortable to wear and also ensures an elegant appearance. Characteristic details include the crown adorned with transverse grooves, the slim lugs and a strap made from hand-sewn alligator leather.
The rose gold model comes with a brown alligator leather strap, while the stainless steel version is worn on a black alligator leather strap.
Powering this timepiece, the hand-wound calibre 102.1 comprises a classic pillar movement formed of a main plate and 3/5 plate. Typical elements include a stepped balance cock with Grossmann micrometer screw and the raised chatons.
Both the construction and sophisticated finish are typical of the Glashütte watch manufactory: the plates bear the distinctive Glashütte ribbing, while the brand name is engraved by hand in block capitals. The balance cock is also engraved by hand with a fine, floral pattern. Another typical feature is the white sapphires as jewels that are set in gold chatons and held by brown-violet screws.
About TEFNUT Collection
The TEFNUT collection is part of the ‘Classic’ line by Moritz Grossmann and comprises various versions including the TEFNUT Sleeping Beauty and TEFNUT Lady. In future, the basic model of the collection will be the new TEFNUT silver-plated by friction.
Technical details
Model: Moritz Grossmann TEFNUT silver-plated by friction
References
MG-003516: 750/000 rose gold case version
MG-003517: Stainless steel version
Movement
Manufactory calibre 102.1, manual winding, regulated in five positions
No. of parts: 188
Jewels: 22, of which 3 in screwed gold chatons
Escapement: Lever escapement
Oscillator: Shock-resistant Grossmann balance with four inertia screws and two poising screws, Nivarox 1 balance spring
Balance diameter: 10.0 mm
Frequency: 21,600 semi-oscillations/hour
Power reserve: 48 hours when fully wound
Movement dimensions
Diameter: 26.0 mm
Height: 3.5 mm
Special features
Shock-resistant balance with inertia and poising screws, impulse pin integrated in rim; flat balance spring; balance staff with integrated safety roller; adjustment with Grossmann micrometer screw; plate movement with 3/5 plate, frame pillars and separately removable clutch winding mechanism; raised gold chatons with pan-head screws; remodified Glashütte stopwork with backlash; mainspring barrel with bilateral jewel bearings for optimised power management in the low-torque range; ARCAP train wheels; proprietary escapement with 18-tooth escape wheel
Functions
Hour and minute
Operating elements
Crown in 750/000 gold or stainless steel for winding the watch and setting the time
Case
Three-part, in 750/000 gold or stainless steel
Diameter: 39.0 mm
Height: 8.5 mm
Crystal/display back: Sapphire crystal, antireflective coating on one side
Dial
Engraved, set in black and hand silver-plated by friction
Hands: Manually crafted, steel, annealed to a brown-violet hue
Strap
Hand-stitched alligator leather with prong buckle in 750/000 gold or stainless steel
