Audemars Piguet Royal Oak Double Balance Wheel Openworked 41mm Stainless Steel 15407ST.OO.1220ST.01

The Audemars Piguet Royal Oak Double Balance Wheel Openworked 41mm, reference 15407ST.OO.1220ST.01, is a stainless steel wristwatch built around a patented mechanism that places two balance wheels and two hairsprings on the same axis. Introduced in 2016, it belongs to the Royal Oak collection and is intended for wearers interested in visible mechanical construction. The openworked dial exposes the Caliber 3132 architecture, so the watch presents its regulating organ as part of its appearance, while the octagonal bezel with eight hexagonal screws identifies it within the Royal Oak line.

The sapphire crystal and caseback allow the movement to be seen from the front and back, where grey bridges contrast with pink gold applied hour markers and hands with luminescent coating. The 41mm case measures 9.9mm thick, and the integrated stainless steel bracelet with folding clasp continues the case profile across the wrist. Water resistance is 5 ATM. The self-winding Caliber 3132 contains 245 components at 5.57mm thick and provides a 45-hour power reserve, with beveled bridges and polished surfaces visible through the open dial.

Technical Specifications:

• Case diameter: 41 mm
• Case thickness: 9.9 mm
• Case and bracelet material: Stainless steel
• Movement: Automatic Caliber 3132, 245 components, 45-hour power reserve
• Water resistance: 5 ATM
• Included: Original box and original papers