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· Royal Oak

Perpetual Calendar Ultra-Thin

26586BA.OO.1240BA.99

Diameter
41mm
Thickness
6.2mm
Size
Large
Water resistance
20m
Movement
Audemars Piguet 5133
Type
Integrated Sports
Case material
Yellow Gold
Case shape
Round
Dial
Champagne
Dial finish
Tapisserie
Complications
Perpetual Calendar, Moon Phase, Day-Date
Crystal
Sapphire crystal (glareproofed), sapphire caseback
Power reserve
40h
Straps
Integrated Bracelet
Production
In production
Limited edition
Yes
Origin
Swiss (Heritage)
Era
Contemporary
View on audemarspiguet.com ↗

Reviews

Reviews of the Royal Oak line

  • Audemars Piguet Royal Oak Perpetual Calendar 25820ST.OO.0944ST.03 Watch Review

    The 1916 Company · Jun 11, 2026 · 7:40

    Watch from 0:13

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