Specification Details Brand Audemars Piguet Collection Royal Oak Selfwinding Reference 15510ST.OO.1320ST.10 Movement Type Self‑winding Automatic (In‑house) Caliber Audemars Piguet Caliber 4302 Functions Hours, Minutes, Seconds, Date Power Reserve Approx. 70 hours Jewels 32 jewels Frequency 28,800 vph / 4 Hz Case Material Stainless Steel Case Diameter 41 mm Case Thickness ~10.5 mm (typical for 15510) Dial Color Grey “Grande Tapisserie” Crystal Glare‑proofed sapphire crystal Bracelet Integrated Stainless Steel with AP folding clasp Water Resistance 50 m / 5 ATM Style / Gender Luxury sports watch / Men’s & Unisex Origin Swiss Made
