Aquanaut Luce Annual Calendar Rose Gold / Blue

In Context

At 39.9 mm it sits just under the modern norm — the band that suits the widest spread of wrists. At 10.9 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. Rated to 30 m, it is protected against rain and splashes and nothing beyond that.

The movement winds itself from the motion of your wrist. 45 hours of reserve carries it overnight, but not through a weekend in a drawer. At 28,800 vph the seconds hand advances 8 times a second.

5261R-001 stands on its own in this catalogue — no other reference here shares its base number. It pairs a blue dial with a rose gold case. Beyond the time it carries an annual calendar.

Annual Calendar. Day and month by hands. Date in an aperture. Moon phases. Sweep seconds. Diameter: 30 mm. Height: 5.32 mm. Number of parts: 319. Power reserve: min. 35 hours - max. 45 hours. Winding rotor: 21K gold central rotor. Balance: Gyromax®. Frequency: 28,800 semi-oscillations/hour (4 Hz). Balance spring: Spiromax®. Hallmark: Patek Philippe Seal. Jewels: 34.

1 other watch in the library runs the Patek Philippe 26-330 S QA LU.

Patek Philippe

Annual Calendar 4946 Stainless Steel / Blue

4946R-001 · 38 mm