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
![[WTS] 2017 AP Royal Oak Chronograph 41mm reference #26320ST](https://preview.redd.it/7yaj24l5agye1.jpg?width=640&crop=smart&auto=webp&s=bbdc3df98383cb41b858b5c8b39fe48f142f02e6)
2017 AP Royal Oak Chronograph 41mm reference #26320ST
This is a 2017 AP Royal Oak Chronograph in excellent condition, with a beautiful silvered dial and a 41mm case.
- Condition: Mint condition
- Case size: 41mm
![[WTS] Audemars Piguet Royal Oak Offshore Diver Chronograph 26703ST.OO.A070CA.01](https://preview.redd.it/xni5anfh6gye1.jpg?width=640&crop=smart&auto=webp&s=69e8fe25470242c9d5246605768dd411969d79b2)
Audemars Piguet Royal Oak Offshore Diver Chronograph 26703ST.OO.A070CA.01
The Audemars Piguet Royal Oak Offshore Diver Chronograph blends luxury and performance with a 42mm stainless steel case, iconic octagonal bezel, and striking orange 'Méga Tapisserie' dial.
- Condition: Mint
- Case size: 42mm
- Water resistance: 300m
- Bezel type: unidirectional rotating
![[WTS] Audemars Piguet Royal Oak Offshore Chronograph 25940OK.OO.D002CA.02](https://preview.redd.it/zghwojqdwfye1.jpg?width=640&crop=smart&auto=webp&s=e83537ac0053f6ab7bab870f533d995606475064)
Audemars Piguet Royal Oak Offshore Chronograph 25940OK.OO.D002CA.02
A stunning Rose Gold edition of the 42 ROO collection with gold trim sub-dials and rubber clad bezel.
- Condition: Very good condition with slight marks on the case and clasp
- Case size: 44mm diameter
- Material: Rose Gold
Audemars Piguet Royal Oak Offshore Volcano 42mm in steel, full set w/extra strap
An excellent example of the AP Royal Oak Offshore, cased in steel and sporting the black mega Tapisserie dial with orange accents, nicknamed the Volcano.
- Material: steel
- Diameter: 42mm
- Case materials: steel
![[WTS] Audemars Piguet Royal Oak Offshore Chronograph "Half Brick" 26470OR Black Dial](https://preview.redd.it/cjcv3pfl99ye1.jpg?width=640&crop=smart&auto=webp&s=f60383c43cf6ad4e68afc2a5cb09ceb0f737fe61)
Audemars Piguet Royal Oak Offshore Chronograph "Half Brick" 26470OR Black Dial
A bold and iconic piece with a solid 18K red gold case and black dial, featuring the refined craftsmanship of AP.
- Condition: Mint condition, minor hairline scratch on rubber strap
- Case size: 42mm diameter
- Case material: Red Gold
- Dial color: Black
![[WTS] 2022 50TH ANNIVERSARY Audemars Piguet Royal Oak Full Rose Gold Bracelet 26240OR.O0.13200R.03 White Dial](https://preview.redd.it/da1df1l1u6ye1.jpeg?auto=webp&s=226adcde83efd3505e25e278ee407daa3310be19)
2022 50TH ANNIVERSARY Audemars Piguet Royal Oak Full Rose Gold Bracelet 26240OR.O0.13200R.03 White Dial
This 2022 Audemars Piguet Royal Oak is a full rose gold bracelet watch with a white dial, featuring a 41mm case diameter and a self-winding chronograph movement.
- Case Diameter: 41mm
- Material: Rose Gold
- Original Box: true
![[WTS] Audemars Piguet Royal Oak 37mm Stainless Steel Silver Dial 15450ST Full Set](https://preview.redd.it/31nsiddv92ye1.jpg?width=640&crop=smart&auto=webp&s=76ba2d62c6cb78fee177d36325dd4ee13be9793d)
Audemars Piguet Royal Oak 37mm Stainless Steel Silver Dial 15450ST Full Set
This Audemars Piguet Royal Oak 37mm Stainless Steel Silver Dial features a stainless steel case and automatic movement. It fits up to a 6.75 inch wrist.
- Condition: Has scratches throughout and a deeper one on 12 o'clock side of bracelet
- Case Size: 37mm
- Material: Stainless Steel
- Bracelet Condition: has scratches throughout and a deeper one on 12 o'clock side

Audemars Piguet Royal Oak Perpetual Calendar Blue White Ceramic MINT 26579CB
This Audemars Piguet Royal Oak Perpetual Calendar features a blue Grande Tapisserie dial, perpetual calendar function, and is made from white ceramic. It includes hours, minutes, day, date, month, moon phase, leap year, and week indicator functions.
- Condition: Mint
- Case material: White ceramic
- Dial color: Blue
Audemars Piguet Royal Oak 39mm White Dial - Mint Condition with Box
This Audemars Piguet Royal Oak features a white dial, iconic octagonal bezel, and signature Tapisserie pattern, making it a true masterpiece of luxury and precision.
- Condition: Mint Condition
- Box: Yes, original box included
- Shipping: Fully insured FedEx Priority Overnight shipping to US addresses included
- Payment Methods: Wire, cryptocurrency, credit card (+4%)