Here are the key specifications for the Audemars Piguet Royal Oak Selfwinding Chronograph 26240OR.OO.1320OR.04 (18-carat Pink Gold)
| Specification | Details |
|---|---|
| Brand | Audemars Piguet |
| Collection | Royal Oak Selfwinding Chronograph “50th Anniversary” |
| Reference | 26240OR.OO.1320OR.04 |
| Movement Type | Self-winding automatic with flyback chronograph (Calibre 4401) |
| Functions | Hours, Minutes, Small Seconds, Date, Flyback Chronograph |
| Power Reserve | ≈ 70 hours |
| Jewels | 40 jewels |
| Frequency | 28,800 vph / 4 Hz |
| Case Material | 18-carat pink gold |
| Case Diameter | 41 mm |
| Case Thickness | ~12.4 mm |
| Dial | Khaki green “Grande Tapisserie” with matching chronograph counters; pink-gold applied hour markers and hands with luminescence |
| Bezel | Royal Oak’s iconic octagonal pink-gold bezel with exposed screws |
| Crystal | Glare-proofed sapphire crystal |
| Caseback | Sapphire exhibition caseback |
| Bracelet | Integrated 18-carat pink gold bracelet with AP folding clasp |
| Water Resistance | 50 m / 5 ATM |
| Style / Gender | Luxury Sports Chronograph / Men’s & Unisex |
| Origin | Swiss Made |




