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
2020 Audemars Piguet 15500ST Royal Oak 41mm Black with Box & Papers
2020 Audemars Piguet Royal Oak 41mm Black with Box & Papers, in excellent condition.
- Condition: Excellent
- Case Size: 41mm
- Material: Stainless Steel
- Dial Color: Black
SOLD FS: Audemars Piguet Royal Oak Jumbo YG 15202BA.OO.0944BA.01 Warranty
- Condition: warranty
- Material: yellow gold

Audemars PIGUET ROYAL OAK OFFSHORE STEEL 43MM 26420SO TAUPE DIAL 2022 FULL SET
A 2022 Audemars Piguet Royal Oak Offshore Steel 43mm with a smoked taupe dial and black ceramic bezel, running perfectly with no issues.
- Condition: Mint, Unpolished
- Case Material: Stainless steel
- Bezel Material: Black ceramic
- Band Material: Light brown strap with stainless steel pin buckle
Audemars Piguet Royal Oak Offshore Chronograph Steel 44mm 26400SO.OO.A002CA.01
This is a stainless steel Audemars Piguet Royal Oak Offshore Chronograph, measuring 44mm in size and featuring a mechanical automatic movement.
- Condition: 95%
- Case material: stainless steel
- Movement type: mechanical automatic

MINT Audemars PIGUET ROYAL OAK 15510ST STAINLESS STEEL GREY DIAL 2024 FULL SET
This 2024 Audemars Piguet Royal Oak is a newer model with a 41mm stainless steel case and grey dial. It comes in full set condition with double boxes and warranty card.
- Condition: Mint, Unpolished
- Material: stainless steel
- Case size: 41mm
- Diameter: 41mm
Audemars Piguet 18K YG Royal Oak 5402 Grey Tropical Dial
This Audemars Piguet Royal Oak features a 39mm case, grey petite tapisserie dial with gold tropical patina, and 20-link 18k yellow gold bracelet.
- Condition: Excellent
- Case size: 39mm
- Bracelet length: 7 inches

Audemars Piguet Royal Oak Offshore "Themes" 26170ST.OO.1000ST.08
A stainless steel case, 42mm in diameter, housing a self-winding chronograph movement with date display and small seconds at the 12 o'clock position.
- Condition: pristine condition
- Case material: stainless steel
- Bracelet type: Offshore stainless steel bracelet
- Movement type: self-winding (Calibre 3126 / 3840)

NOS Audemars PIGUET ROYAL OAK 15550ST BLUE DIAL 37MM 2023 COMPLETE SET
A brand new 2023 Audemars Piguet Royal Oak Self-Winding Stainless Steel watch with a beautiful blue dial and complete set.
- Condition: New Old Stock, Unworn & Unsized
- Year: 2023
- Case Size: 37mm
- Material: Stainless Steel