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Openworked Extra-thin
The Royal Oak 1972-2012 features a skeletonised version of Calibre 2121 (Cal. 5122) which is highlighted by a contemporary decoration and a galvanic anthracite treatment. Platinum 40-piece limited edition.
Explore Royal Oak
Royal Oak To break the rules, you must first master them. 
Savoir-faire Designing a Royal Oak 
Savoir-faire The art of openworking Details
- Case Width 39.00 mm
- Case Thickness 8.10 mm
- Water Resistance 50 m
Specifications
- Case
- 950 platinum case, glareproofed sapphire crystal and caseback, water-resistant to 50 m
- Dial
- Openworked slate grey dial, white gold applied hour-markers and Royal Oak hands with luminescent coating
- Bracelet
- 950 platinum bracelet with AP folding clasp
- Reference
- 15203PT.OO.1240PT.01
- Functions
- Hours/Minutes
- Base movement thickness
- 3.05
- Movement thickness with module
- 3.05 mm
- Total diameter
- 28.4 mm
- Total diameter
- 12½ lines
- Type of balance
- With Variable inertia blocks
- Frequency of balance wheel
- 2,75 (=19'800 vibrations/h Hz
- Number of jewels
- 36
- Power reserve
- 40 h
- Number of parts
- 248
specificities
- Extra thin movement
- Skeleton movement
- Suspended barrel
- Shake of the oscillating weight garanteed thanks to annular ring running on four jewels
- Sapphire calendar indicator
- Manual finishing on both bridges and mainplate
- Oscillating weight can be custom decorated upon customer's request
- Anniversary oscillating weight «1972 - 2012»
- Date/Date in Dial aperture
Expert Service
As an Audemars Piguet owner, you’ll have access to the world’s brightest master horologers – many trained here in the Vallée de Joux.
ServiceVisit a Boutique
You can indulge your fascination with our timepieces at retail locations and at our exclusive boutiques, all over the world.
Where to buy
Audemars Piguet History
The Royal Oak is named for British Royal Navy battleships, themselves christened for the tree where King Charles II hid from his enemies.
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