Skeleton 7180

In Context

At 31.4 mm it is small by current standards, in the range most wristwatches occupied before cases began growing through the 1990s. 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. Rated to 30 m, it is protected against rain and splashes and nothing beyond that.

The movement is hand-wound, so winding it becomes part of the day rather than something the watch does for you. 44 hours of reserve carries it overnight, but not through a weekend in a drawer. At 21,600 vph the seconds hand advances 6 times a second, the slower and more audible rate of an older design.

7180/1G-001 stands on its own in this catalogue — no other reference here shares its base number. It pairs a skeleton dial with a white gold case.

Ultra-thin mechanical manually wound skeleton movement, manually decorated and engraved Diameter: 20.8 mm Height: 1.77 mm Jewels: 18 Parts: 110 Balance: Gyromax® Vibrations/hour: 21 600 (3 Hz) Power reserve: Min. 43 hours Hallmark: Patek Philippe Seal