Audemars Piguet Royal Oak Double Balance Wheel Openworked 15407ST Steel Super Clone

Reference 15407ST.OO.1220ST.01 is the Audemars Piguet Royal Oak Double Balance Wheel Openworked in stainless steel, with the skeletonised movement visible through the slate grey openworked dial.

The genuine watch

The genuine 15407ST has a 41 mm stainless steel case with a glareproofed sapphire crystal and caseback, water-resistant to 50 m. Calibre AP 3132 is self-winding with a 45-hour power reserve and functions for hours, minutes and centre seconds. The double balance wheel mechanism, patented by Audemars Piguet, places two balance wheels and balance-spring assemblies on the same axis to improve precision and stability. Pink gold applied hour-markers and Royal Oak hands carry a luminescent coating.

Factory notes

The r/RepTime Who Makes the Best guide (May 2026) rates DDF as the best factory for the 15407 Openwork Skeleton at the Super Rep tier, using a 3132 clone movement. THB is listed as the second choice. Ask us which factory version is available before you pay.

Check on your watch

• The movement is fully visible through the openworked dial from the front.
• Pink gold accents appear on the movement bridges and hands.
• The steel bracelet integrates with the octagonal bezel, which has eight hexagonal screws.

You can request additional photos or video before buying. Returns are accepted within 14 days on unworn watches in original packaging.