Audemars Piguet Royal Oak Royal Oak Perpetual Calendar Openworked 41 150th Anniversary
Reference 26585XT.OO.1220XT.01
About this watch
The Royal Oak Perpetual Calendar Openworked ref. 26585XT.OO.1220XT.01 debuted in 2025, marking 150th anniversary of Audemars Piguet, and the end of of caliber AP 5135 - which is dressed-up for the occasion, The 41 mm case combines a bezel and caseback frame in BMG (Bulk Metallic Glass) with a titanium case middle and screw-locked crown.
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Specifications
- Brand
- Audemars Piguet
- Family
- Royal Oak
- Model
- Royal Oak Perpetual Calendar Openworked 41 150th Anniversary
- Reference
- 26585XT.OO.1220XT.01
- Movement
- ap-5135
- Movement Features
-
- Hours, Minutes
- Date, Day, Leap Year, Month, Week Indicator
- Moonphase
- Case
- 41mm
- Dial Color
- Skeleton
- Crystal
- Sapphire
- Water Resistance
- 20
Current Listings
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![[WTS] Audemars Piguet Royal Oak 18K Yellow Gold & Steel 33mm Quartz 56175SA Watch](https://external-preview.redd.it/xSRkXXV_tloD0hxhCAP0n_0Kh62Yb_p7nWxVMhQlz2g.jpeg?auto=webp&s=27f33dd170347adcf2eda4be8fc949c1211a1515)
Audemars Piguet Royal Oak Chrono Rose Gold Blue 26240OR.OO.D315cr.02
The watch is a Royal Oak Chrono in Rose Gold with Blue dial and strap, showing only minor surface hairlines.
- Condition: Mint condition
- Material: Rose Gold
- Dial color: Blue
![[WTS] Audemars Piguet Royal Oak Offshore Diver Stainless Steel White Dial 15710ST](https://external-preview.redd.it/jZ_w_7nC415rylxwEVDAFwaqcUZDZroRMuwuCQVOr0Q.jpeg?auto=webp&s=5f1dc843a7d9456826639a5a3bb71aee676512bc)
Audemars Piguet Royal Oak Offshore Diver Stainless Steel White Dial 15710ST
This Audemars Piguet Royal Oak Offshore Diver features a stainless steel case, white Tapisserie dial, and automatic mechanical movement.
- Condition: preowned with scratches to the case, bezel and buckle
- Case material: stainless steel
- Case dimensions: 42mm diameter
- Bezel: stainless steel
Audemars Piguet Royal Oak Offshore Titanium Ceramic 44mm Box & Papers – 26400IO
A massive 44mm titanium case with a rugged, high-tech feel and a slate grey "Méga Tapisserie" dial adds depth and dimension beneath the bold red chronograph accents. This timepiece is powered by AP's automatic chronograph movement.
- Condition: Excellent preowned condition
- Case material: Titanium
- Bezel material: Black ceramic
- Pusher material: Black ceramic
Audemars Piguet Royal Oak Offshore Chronograph “Half Brick” Rhodium 42mm 26470OR
The Audemars Piguet Royal Oak Offshore Chronograph is a bold and elegant watch with a striking grey dial, 18k rose gold case, and automatic chronograph movement. It's designed for those who want their wristwear to turn heads and stand out from the crowd.
- Condition: Excellent preowned condition
- Case diameter: 42mm
- Movement type: automatic chronograph
- Strap options: black rubber, white textured rubber

Audemars Piguet Royal Oak Offshore Rubens Barrichello II 26078PO.OO.D018CR.01 Platinum.
This Audemars Piguet Royal Oak Offshore Rubens Barrichello II features a platinum case and comes with warranty booklets and a service box.
- Condition: Excellent
- Material: platinum
Audemars Piguet Royal Oak Offshore Navy 26470ST
The Audemars Piguet Royal Oak Offshore Navy is a 42mm stainless steel chronograph watch with a navy blue dial and Méga Tapisserie pattern, delivering a statement of power, precision, and prestige.
- Condition: Very good pre-owned condition
- Size: 42mm diameter
- Case material: Stainless steel
- Features: Chronograph, Date Window, Screw-down Crown