Audemars Piguet Royal Oak Openworked Stainless steel Watch 15305ST.OO.1220ST.01
Specifications
Case Width 39.00 mm
Case Thickness 9.40 mm
Water Resistance 50 m
Case
Stainless steel case, glareproofed sapphire crystal and caseback, screw-locked crown
Dial
Slate grey dial, white gold applied hour-markers and Royal Oak hands with luminescent coating
Bracelet
Stainless steel bracelet with AP folding clasp
Reference
15305ST.OO.1220ST.01
Functions
Hours, minutes, centre seconds
Total diameter
11¾ mm
Type of balance
With Variable inertia blocks
Frequency of balance wheel
3,00 (=21’600 alternances/hour) Hz
Type of balance-spring stud-holder
Screwed mobile stud
Balance-spring type
Flat
Direction of automatic winding
Bidirectional
Type of oscillating weight
Monobloc in 22-carat gold
Number of jewels
38
Power reserve
60 h
Number of parts
239
specificities
Skeleton movement
Stop balance when setting time
Oscillating weight with ceramic ball bearings
Manual finishing on both bridges and mainplate
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