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

Reference 26684ST.OO.1356ST.01

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

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

Current Listings

Audemars Piguet Royal Oak Offshore 44MM LE Titanium - Ref 26078IO.OO.D001VS.01 (1 of 1,000 • EXCELLENT COMPLETE SET • SERVICED)

Audemars Piguet - 26078IO.OO.D001VS.01 · $27,800

This watch is a 44MM Audemars Piguet Royal Oak Offshore LE created in collaboration with Rubens Barrichello II for Ferrari, one of only 1,000 made in titanium worldwide.

Condition: immaculate, pre-owned condition
Collaboration: Ferrari and F1 driver Rubens Barrichello II
Production run: 1,000 pieces
Case material: titanium

Posted at

Feb 17, 2026, 5:52 PM

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2023 Audemars Piguet Royal Oak Offshore Chrono 42mm 26238ST Blue Dial - $39,850

Audemars Piguet - 26238ST.OO.A340CA.01 · $39,850

The seller is listing a 2023 Audemars Piguet Royal Oak Offshore Chronograph in stainless steel with a blue dial and black counters.

Condition: Excellent overall condition
Case size: 42mm diameter
Material: Stainless Steel
Strap material: Blue rubber and Black Calfskin leather

Posted at

Feb 17, 2026, 1:16 PM

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Audemars Piguet Royal Oak Offshore Bleu Nuit Nuage 50 26238CD.OO.1300CD.01 Complete Set

Audemars Piguet - 26238CD.OO.1300CD.01 · $120,995

This Audemars Piguet Royal Oak Offshore Bleu Nuit Nuage 50 is a brand-new 2025 release with a bold design and unmistakable Offshore character, featuring a blue ceramic build and 42 mm case.

Condition: Like new
Case size: 42 mm
Case material: Blue ceramic with titanium caseback
Bezel material: Ceramic

Posted at

Feb 17, 2026, 8:56 AM

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Audemars Piguet Royal Oak Offshore 44mm - 26401RO.OO.A002CA.02

Audemars Piguet - 26401RO.OO.A002CA.02

Size: 44mm case diameter

Posted at

Feb 16, 2026, 9:12 PM

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Audemars Piguet Royal Oak Offshore 26470IO – Titanium/Ceramic – Box & Papers – Random Serial (2020+) – Great Condition – 26,800 Shipped – Trades Welcome

Audemars Piguet - 26470IO · $26,800

This Audemars Piguet Royal Oak Offshore Ref. 26470IO features a titanium case, gray ceramic bezel, and AP automatic chronograph movement, giving it a rugged yet luxurious presence.

Condition: great
Case material: titanium
Bezel material: gray ceramic
Movement type: AP automatic chronograph movement

Posted at

Feb 15, 2026, 12:13 PM

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Vintage Seiko Sports 150 – Alarm Chronograph – 😏 “Poor Man’s AP Royal Oak” 😏 – 7T34-7A10 – $245 Shipped

Seiko - 7T34-7A10 · $245

This vintage Seiko Sports 150 is a stylish and functional chronograph watch featuring date display, alarm functions, and powered by quartz movement. It's housed in an approximately 44mm case on its original bracelet.

Condition: Used with signs of wear and fading
Case Size: approximately 44mm
Strap Length: up to 8 inches

Posted at

Feb 14, 2026, 2:14 PM

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