2012/01/20 - Audemars Piguet new Open-Worked extra-thin Royal Oak

A platinum 40-piece limited edition sets the crowning touch to this celebration. The Royal Oak 1972-2012 features a skeletonised version of Calibre 2121 (Cal. 5122) which is highlighted by a contemporary decoration and a galvanic anthracite treatment.

Technical specifications     

Ref. : 15203PT.OO.1240PT.01 

Case Width 39.00 mm 
Case Thickness 8.10 mm 
Water Resistance 50 m 

Case 950 platinum case, glareproofed sapphire crystal and caseback, water-resistant to 50 m
Dial Openworked slate grey dial, white gold applied hour-markers and Royal Oak hands with luminescent coating
Bracelet 950 platinum bracelet with AP folding clasp

Functions Perpetual calendar with day, date, moon phases, months, leap years, hours, minutes - Movement thickness with module 3.00 mm - Total diameter 15¾ mm - Type of balance With Variable inertia screws - Frequency of balance wheel 3,00 (=21’600 alternances/hour) Hz - Type of balance-spring stud-holder Mobile stud - Balance-spring type Flat - Number of jewels 20 - Power reserve 42 h 

Specificities : Extra-thin movement - Manual finishing of the cut out parts (polished bevels, grained finishing on top and Matt “brouillé” finishing underneath) - Moonphase made with Physical Vapor Deposited metal onto sapphire - Perpetual calendar / Date / Day / Month / Leap year / Moonphases