The TEFNUT model is a watch that reflects a decidedly reduced form and a straightforward approach to time keeping. Its personality eliminates all doubt that horological class is also a question of appearance.
Exquisitely cambered, polished steel hour markers, convex numerals at the 6 and 12 o‘clock positions, manually-crafted hands and a slender, polished steel case are defining elements of this strikingly simple, technically perfect timepiece.
A totally reimagined mechanical heart of similarly subtle elegance beats inside the handsome case. The remarkably thin movement (3.45mm) exhibits all of Grossmann’s signature hallmarks, yet is absolutely unique in its linear-symmetric architecture. This is immediately visible with a glance at the modified, abrupt cut of the 3/5 plate which juxtaposes the exquisitely engraved calibre that lies beneath.
TEFNUT Pure Steel is designed to convey a subtle message of style with its minimalistic dial and streamlined case as well as afford the wearer a profound sense of horological mastery from what lies underneath.
The sophisticated anthracite/grey dial resounds within the polished steel case for a distinctive and mature look.
Case: Stainless steel
Limitation: 150 pieces
Movement: Manufacture calibre 102.0, manually wound, adjusted in five positions
No. of parts: 188
No. of jewels: 26
Escapement: Lever escapement
Oscillator: Shock-resistant Grossmann balance with 4 inertia and 2 poising screws, Nivarox 1 balance spring
Balance Diameter: 10.0 mm, Frequency: 21,600 semi-oscillations per hour
Power reserve: 48 hours when fully wound
Functions: Hours and minutes
Operating elements: Crown for winding the watch and setting the time
Case dimensions: Diameter: 39.0 mm, height: 8.5 mm
Movement dimensions: Diameter: 26.0 mm, height: 3.45 mm
Case: Three-part, stainless steel or stainless steel DLC dianoir
Dial: Lacquered brass, hour markers stainless steel, rhodiumed
Hands: Hand-crafted, stainless steel
Crystal and display back: Sapphire crystal, antireflective coating on one side
Strap: Hand-stitched alligator strap with prong buckle in stainless steel