Annual Calendar Chronograph 5905 Platinum / Blue

In Context

At 42 mm it is sized to the current mainstream: 40 mm is the median across every watch measured in this catalogue. At 14.03 mm it is a tall case, and it will catch on a cuff. 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. 55 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.

5950P-001 stands on its own in this catalogue — no other reference here shares its base number. It pairs a blue dial with a platinum case. Beyond the time it carries a chronograph and an annual calendar.

Movement based on CH 28-520 IRM QA 24H, yet without Power Reserve indicator and hour totalizer.

5 other watches in the library run the Patek Philippe CH 28-520 QA 24H.

Patek Philippe

Annual Calendar Chronograph 5905 Stainless Steel / Green / Bracelet

5905/1A-001 · 42 mm

Patek Philippe

Annual Calendar Chronograph 5905 Rose Gold / Blue

5905R-010 · 42 mm

Patek Philippe

Annual Calendar Chronograph 5905 Platinum / Black

5905P-001 · 42 mm

Patek Philippe

Annual Calendar Chronograph 5905 Platinum / Green

5905P-014 · 42 mm