Audemars Piguet Royal Oak Royal Oak Perpetual Calendar 38 Stainless Steel / Light Blue

Reference 26684ST.OO.1356ST.01

About this watch

The Audemars Piguet Royal Oak Perpetual Calendar Automatic 26684ST.OO.1356ST.01 debuted in 2025. This reference is housed in a stainless steel case of 38 mm with a thickness of 9.4 mm. Both front and back are fitted with glareproof sapphire crystals, and water resistance is rated at 50 meters. The integrated stainless steel bracelet is secured with an AP folding clasp. The dial is light blue with the signature Grande Tapisserie pattern. It features tone-on-tone subsidiary dials for the perpetual calendar indications, complemented by white gold applied hour markers and hands with luminescent coating, and a silvery-grey inner bezel. This model is powered by the self-winding caliber 7136, a movement measuring 29.6 mm in diameter and 4.1 mm in height, composed of 413 parts with 41 jewels. It operates at a frequency of 28,800 vph (4 Hz) and has a power reserve of 55 hours. Functions include hours, minutes, perpetual calendar with day, date, month, leap year, and astronomical moon phase. The caliber incorporates three patented mechanisms and is adjusted entirely via the crown, without the need for correction tools.
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Specifications

Brand
Audemars Piguet
Family
Royal Oak
Model
Royal Oak Perpetual Calendar 38 Stainless Steel / Light Blue
Reference
26684ST.OO.1356ST.01
Movement
ap-7136
Movement Features
  • Hours, Minutes
  • Date, Day, Leap Year, Month
  • Moonphase
Case
Stainless Steel 38mm
Dial Color
Blue
Crystal
Sapphire
Water Resistance
50

Current Listings

[WTS] 1990s Audemars Piguet Royal Oak Dual Time ref. 25730ST - Just serviced by AP!

1990s Audemars Piguet Royal Oak Dual Time ref. 25730ST - Just serviced by AP!

Audemars Piguet - 25730ST · $24,250
This 1990s Audemars Piguet Royal Oak Dual Time ref. 25730ST features a stainless steel case with a black dial and polished hands. It has been recently serviced by Audemars Piguet and is in good working order, with all functions functioning as expected.

  • Condition: Good, normal wear in the form of hairlines, tiny scratches, and micro nicks throughout
  • Case diameter: 36mm
  • Lug width: 23.5mm
  • Thickness: 9.8mm
Posted at
Oct 26, 2025, 5:40 PM
Active
[WTS] Limited Edition Audemars Piguet Royal Oak Offshore Limited Edition Taipei 101 26197ST.OO.D305CR.01 Chronograph AP Full Set

Limited Edition Audemars Piguet Royal Oak Offshore Limited Edition Taipei 101 26197ST.OO.D305CR.01 Chronograph AP Full Set

The watch is a Limited Edition Royal Oak Offshore Chronograph with a case size of 42mm.

  • Condition: Good, some slight wear on the strap
  • Case Size: 42mm
  • Features: Chronograph
Posted at
Oct 26, 2025, 12:33 PM
Active
Audemars Piguet Royal Oak Perpetual Calendar Blue White Ceramic MINT 26579CB

Audemars Piguet Royal Oak Perpetual Calendar Blue White Ceramic MINT 26579CB

Audemars Piguet - 26579CB · $306,899
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
Posted at
Apr 8, 2025, 1:20 PM
Active
Audemars Piguet Royal Oak 39mm White Dial - Mint Condition with Box

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%)
Posted at
Apr 7, 2025, 8:26 PM
Active
NIB Audemars Piguet Royal Oak Chronograph Rose Gold Green Dial Strap 26240 Full Se

NIB Audemars Piguet Royal Oak Chronograph Rose Gold Green Dial Strap 26240 Full Se

This 41mm Audemars Piguet Royal Oak Chronograph features an in-house automatic movement and a green dial on an 18K rose gold case.

  • Condition: New, unworn (NIB)
  • Case size: 41mm
  • Movement type: Automatic, in-house
Posted at
Apr 7, 2025, 3:20 PM
Active
Audemars PIGUET ROYAL OAK JUMBO ULTRA THIN 15202ST BLUE DIAL 2018 FULL SET

Audemars PIGUET ROYAL OAK JUMBO ULTRA THIN 15202ST BLUE DIAL 2018 FULL SET

A 2018 Audemars Piguet Royal Oak Jumbo Extra-Thin in stainless steel with a blue dial, featuring a 39mm case size.

  • Condition: Excellent Condition
  • Case Size: 39mm
  • Diameter: 39mm
  • Year: 2018
Posted at
Apr 4, 2025, 9:08 PM
Active
2022 Audemars Piguet Ref. 26331ST Royal Oak Chronograph

2022 Audemars Piguet Ref. 26331ST Royal Oak Chronograph

Audemars Piguet - 26331ST · $41,950
2022 Audemars Piguet Ref. 26331ST Royal Oak Chronograph, featuring a 41mm case and blue dial.

  • Condition: Light wear
  • Case size: 41mm
  • Dial color: blue
Posted at
Apr 4, 2025, 11:30 AM
Active