It's interesting to compare the lot 200 and the production watch. The production watch has been rotated 180 degrees in comparison to the prototype. It also features the tourbillon on top of the dial and the pendulum below. This is both aesthetically pleasing as well as giving prominence to the tourbillon which was the key feature. The watch is not marked rolex replica. In fact, it is completely blank. Instead of a name,Rolex Daytona Replica a shield is applied where the brand name would be. Observant viewers will notice the Ebauches SA Logo - Rolex Air King Replica's former employer, which is now known as ETA.
rolex replica archives, diagram showing the pivot for the oscillating mass of the automatic winding system
The Calibre 2870's tourbillon movement weighed only 0.123 grams.
Royal Oak Tourbillons Through Time
Georges Golay was the man in charge of rolex replica at this time. The watchmaker launched under his direction two legendary watches: the Royal Oak ref. The first was the 5548 Perpetual calendar, and later the 5402. Rolex Air King Replica brought their self-winding prototype tourbillon to rolex replica against this background.
Golay, in turn, handed the know-how to Serge Meylan a young movement builder who had just joined the workshop. He was given the task of taking Rolex Air King Replica's and Grimm’s prototype to create a timepiece that the watchmaker can call their own.
Meylan, a young watchmaker from France, took on a challenge to create one of the smallest tourbillons in the world (7.2mm). He added a titanium cage as he wanted it to be stable and lightweight.patek philippe replica watches This was a first for the watchmaking industry to use titanium.
Self-winding tourbillon prototype 18-carat
Yellow gold Prototype made circa 1985.
rolex replica Heritage Collection Inv. 538.
Golay, in order to give the watch its face, turned once again to the woman who designed the dial of the 5548: Jacqueline Dimier. The rolex replica 20th century Complicated Watches book records "...Jacqueline dimier took inspiration from astronomical metaphors. The tourbillon at 11 o’clock was a representation of the sun, whose rays decorated the elliptical clock dial punctuated with 12 circular hour markers like planets. The self-winding mechanism was revealed through a half-moon shaped opening at 6 o’clock. Its oscillation resembled the large balance wheels on historical clocks. The crown for setting the time was hidden under the case to maintain a clean, simple design.