Master Ultra Thin Moon White Gold / Enamel / Alligator

In Context

At 39 mm it sits just under the modern norm — the band that suits the widest spread of wrists. At 10.04 mm thick it is about average for a modern wristwatch. The case back is open, so the movement is visible without taking the watch apart, and the sapphire crystal will resist everything short of deliberate abuse. 50 m covers rain and hand-washing comfortably; it is not a watch to swim in.

The movement winds itself from the motion of your wrist. 70 hours of reserve is enough to set it down on Friday evening and find it still running on Monday. At 28,800 vph the seconds hand advances 8 times a second.

13635E1 stands on its own in this catalogue — no other reference here shares its base number. It pairs a blue guilloche dial with a white gold case. It was a limited edition. Introduced in 2019.

The mechanical self-winding movement is comprised of 245 parts and draws on a 70-hour power reserve.