Unworn Audemars Piguet Royal Oak SELFWINDING “50TH ANNIVERSARY” 15510ST.OO.1320ST.01. 41 mm, Bleu nuit nuage 50 dial with “Grande Tapisserie” pattern, white gold applied hour-markers and Royal Oak hands with luminescent coating, Stainless steel case, glareproofed sapphire crystal and caseback, screw-locked crown, 5900 calibre, Selfwinding movement, 70 h power reserve, 32 jewels, Stainless steel bracelet with AP folding clasp. Water resistant to 50 m.
- Make: Audemars Piguet
- Model: Royal Oak
- Reference: 15510ST.OO.1320ST.01
- Diameter: 41 mm
- Case material: Stainless steel
- Dial color: Blue
- Bezel Type: Fixed
- Bezel Color: Silver
- Bezel Material: Stainless steel
- Crystal: Glareproofed sapphire crystal
- Calibre: 5900
- Movement: Selfwinding
- Number of Jewels: 32
- Power Reserve 70 h
- Bracelet Material: Stainless steel
- Clasp: AP folding clasp
- Functions: Chronograph, hours, minutes, small seconds and date
- Water resistance: 50 m
