The highlights of such as the Grossmann balance, the hand-engraved balance cock or the ratchet wheel with three-band snailing could only be admired through the display back. Now, with the development of the mirrored calibre, they can be shown on the dial side. This model presents the “back page” of the movement in an unusually large dial aperture that doubles as a prominent stage. The BACKPAGE GREEN comes in an 25-watch limited edition worldwide in rose gold.
Case 750 rose gold.
Case dimensions Diameter: 41.0 mm, height 11.35 mm.
Movement Manufacture calibre 107.0, manually wound, adjusted in five positions.
Movement dimensions Diameter: 36.4 mm, height 5.0 mm
No. of parts 230.
Escapement Lever escapement.
Balance Diameter 14.2 mm, frequency: 18,000 semi-oscillations/hour.
Functions Hours, minutes, and subsidiary seconds with stop seconds, Grossmann winder with pusher.
Operating elements Crown in precious metal, for winding the watch and setting the time, pusher in precious metal for starting the movement.
No. of jewels 24, of which 7 in screwed gold chatons.
Oscillator Shock-resistant Grossmann balance with 4 inertia and 2 poising screws, Nivarox 1 balance spring with No. 80 Breguet terminal curve, Gerstenberger geometry.
Dial Solid silver, baton hour markers in precious metal.
Power reserve 42 hours when fully wound.
Crystal / display back Sapphire crystal, antireflective coating on one side.
Case Three-part, precious metal.
Hands Manually crafted, steel, polished, annealed to a brown, blue or brown-violet hue.
Strap Hand-stitched alligator strap with prong buckle in precious metal.