Royal Oak Openworked Selfwinding Stainless Steel

In Context

At 39 mm it sits just under the modern norm — the band that suits the widest spread of wrists. At 9.4 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. 60 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.

15305ST.OO.1220ST.01 stands on its own in this catalogue — no other reference here shares its base number. It pairs a grey dial with a pink gold case. Introduced in 2010.

AP 3129 is an in-house, self-winding, skeletonized movement. It is based on caliber AP 3120.

3 other watches in the library run the Audemars Piguet AP 3129.

Audemars Piguet

Royal Oak 15306 Openworked Selfwinding Pink Gold / Diamond

15306OR.ZZ.D088CR.01 · 39 mm

Audemars Piguet

Royal Oak Kidz Horizon

15406IM.OO.D005CR.01 · 41 mm

Audemars Piguet

Royal Oak Openworked Selfwinding Pink Gold / Strap

15305OR.OO.D088CR.01 · 39 mm