Royal Oak Selfwinding
Ref – 15300ST.OO.1220ST.01
A disruptive and downright revolutionary timepiece, the Royal Oak is immediately recognizable thanks to its state-of-the-art engineered strongbox case, octagonal bezel secured by eight hexagonal screws, visible water resistance gaskets, dials adorned with exclusive engine-turned “Grande Tapisserie” motif.
Technical Details
Case
Glare proofed sapphire crystal and caseback,
Screw-locked crown,
Water-resistant to 50 m
Dial
“Grande Tapisserie” pattern,
White gold applied hour-markers with luminescent coating,
Ref – 15300ST.00.1220ST.02 White gold Royal Oak hands with luminescent coating Ref – 15300ST.00.1220ST.03
Bracelet 
Stainless steel AP folding clasp
Functions
Hours, minutes, centre seconds, date
Movement thickness with module – 4.26 mm
Total diameter – 11¾ lines
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 – 40
Power reserve – 60 h
Number of parts – 280
Calibre
Selfwinding Manufacture Calibre 3120
Specificities
Stop balance when setting time
Oscillating weight with ceramic ball bearings
Bevels of the bridges are diamond graved
Inverted snailing on bridges
Date / Date in Dial aperture
