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] 2024 Audemars Piguet Royal Oak Offshore 42 Green Diver 15720ST — Pre-owned, Box and Papers](https://preview.redd.it/yvrmjutat9hf1.jpeg?auto=webp&s=98fe837ca13740dbab6e5448c8f37d74b81880cb)
![[WTS] 2023 Audemars Piguet Royal Oak Offshore Chronograph 43mm 26420SO — Mint Condition, Box & Papers](https://preview.redd.it/bsm1iajnh2kf1.jpeg?auto=webp&s=9f8fb1c7a2cd3c0d364a57b6b9d6e71f622ee6be)
![[wts] Audemars Piguet Royal Oak Ultra Thin Jumbo 15202st Blue Mint](https://preview.redd.it/j328ouhlzdlf1.jpg?width=640&crop=smart&auto=webp&s=55064e8ccafc051efb758f962f96b0b1def78d8d)
![[WTS] Audemars Piguet Royal Oak Offshore Chronograph 26400IO Titanium Slate Grey 44mm Full Set Excellent Condtion](https://external-preview.redd.it/3unQJg_5myPP5wQd-H1h1g0zxhfR8xEmOx-zA0D0_Xc.jpg?auto=webp&s=1dce8938f7d6ff4e6331d39720b1399bc10a855b)
![[WTS] Audemars Piguet Royal Oak Offshore Navy 26470ST](https://preview.redd.it/seafgf48s9lf1.jpg?width=640&crop=smart&auto=webp&s=5cbcc53be38d6ed73c7908f80003539b841664db)
![[WTS] Audemars Piguet Royal Oak Offshore “Safari” – Ref. 26170ST (2008, Watch + Papers, Solid Caseback, Horus Straps) – $18,250 Shipped](https://preview.redd.it/t84kfp1776lf1.jpg?width=640&crop=smart&auto=webp&s=f724106ca3d4c9be7cbfba7f41fe0ec5d514ff15)
![[WTS] Audemars Piguet Royal Oak Offshore “Half Brick” Black Dial 26470OR.OO.A002CR.02](https://preview.redd.it/yy2odr9z1lkf1.jpg?width=640&crop=smart&auto=webp&s=716e409e2fcd4516fa4f68a43d0ac8ae3132b2df)
Audemars Piguet Royal Oak Offshore “Half Brick” Black Dial 26470OR.OO.A002CR.02
The Audemars Piguet Royal Oak Offshore 'Half Brick' is a bold and recognizable timepiece crafted in solid 18K red gold, featuring a black dial and 42mm case.
- Condition: Pre-owned with very light wear and minor imperfections
- Material: solid 18K red gold
- Diameter: 42mm
- Bezel condition: clean
![[WTS] Audemars Piguet AP Royal Oak Offshore Black & White Chronograph 42mm Stainless Steel Full Set MINT 26170ST](https://preview.redd.it/hwud7kzacfkf1.jpg?width=640&crop=smart&auto=webp&s=e1bca2fea2c4a8c94e78d9c4cdbfd69e01d40152)
Audemars Piguet AP Royal Oak Offshore Black & White Chronograph 42mm Stainless Steel Full Set MINT 26170ST
A Royal Oak Offshore chronograph with a black dial, stainless steel case, and AP hornback strap.
- Condition: Pristine
- Case size: 42mm diameter
- Straps included: 2
- Value of extra straps: $500+
![[WTS] Audemars Piguet Royal Oak Offshore 42mm Blue “Beast” AP 26237ST Box and Papers](https://preview.redd.it/dh8c9einhekf1.jpg?width=640&crop=smart&auto=webp&s=c1d0d12e7cfe705979fc83a3b8374c43c7589be5)
Audemars Piguet Royal Oak Offshore 42mm Blue “Beast” AP 26237ST Box and Papers
This watch is an Audemars Piguet Royal Oak Offshore 42mm in blue, known as the "Beast". It features a stainless steel case and comes with original box and papers.
- Size: 42mm diameter