Royal Oak Automatic 29 Hour - Minute Stainless Steel / Blue

In Context

At 29 mm it is small by current standards, in the range most wristwatches occupied before cases began growing through the 1990s. The case back is closed, so the movement stays out of sight, and the sapphire crystal will resist everything short of deliberate abuse.

The movement winds itself from the motion of your wrist.

8638ST.00.0424ST.01 stands on its own in this catalogue — no other reference here shares its base number. It pairs a blue guilloche dial with a stainless steel case.

1 other watch in the library runs the Audemars Piguet AP 2062.

Audemars Piguet

Royal Oak Automatic 29 Hour - MInute Yellow Gold / Black

8638.BA.O.0424.BA.01 · 29 mm