Unworn Audemars Piguet Royal Oak SELFWINDING “50TH ANNIVERSARY” 15551ST.ZZ.1356ST.01. 37 mm, Light blue dial with “Grande Tapisserie” pattern, white gold applied hour-markers and Royal Oak hands with luminescent coating, Stainless steel case, bezel set with brilliant-cut diamonds, glareproofed sapphire crystal and caseback, 5900 calibre, Selfwinding movement, 60 h power reserve, 29 jewels, Stainless steel bracelet AP folding clasp. Water resistant to 50 m.
- Make: Audemars Piguet
- Model: Royal Oak
- Reference: 15551ST.ZZ.1356ST.01
- Diameter: 37 mm
- Case material: Stainless steel
- Dial color: Light blue
- Bezel Type: Fixed
- Bezel Color: Grey
- Bezel Material: Stainless steel
- Crystal: Glareproofed sapphire crystal
- Calibre: 5900
- Movement: Selfwinding
- Number of Jewels: 29
- Power Reserve: 60 h
- Bracelet Material: Stainless steel
- Clasp: AP folding clasp
- Functions: Hours, minutes, centre seconds and date
- Water resistance: 50 m
