Jules Audemars 26143 Tourbillon Openworked Platinum

In Context

At 41 mm it is sized to the current mainstream: 40 mm is the median across every watch measured in this catalogue. At 13 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 20 m, it is protected against rain and splashes and nothing beyond that.

The movement winds itself from the motion of your wrist. 54 hours of reserve is enough to set it down on Friday evening and find it still running on Monday. At 21,600 vph the seconds hand advances 6 times a second, the slower and more audible rate of an older design.

26143PT.OO.D005CR.01 stands on its own in this catalogue — no other reference here shares its base number. It pairs a grey dial with a platinum case. Introduced in 2016. Beyond the time it carries a tourbillon.

Self-winding movement with tourbillon escapement and power reserve indicator. Hammer-winding system; crown fitted on the back. Titanium tourbillon case.

1 other watch in the library runs the Audemars Piguet AP 2875.

Audemars Piguet

Royal Oak 25831 Tourbillon 25th Anniversary Pink Gold

25831OR.O.1110OR.01 · 40 mm