Audemars Piguet Royal Oak Perpetual Calendar
| Brand | Audemars Piguet |
| Name | Royal Oak Perpetual Calendar |
| Reference | 26574BA.OO.1220BA.01 |
| Diameter | 41 mm |
| Material | Yellow Gold Case, Yellow Gold Strap, Gold Bezel |
| Features | Date, Date Pointer, Day of the Week, Month, Perpetual Calendar, Moonphase |
| Movement | Automatic Self-Winding Mechanical Power Reserve 40 hours |
| Price | About $130,744 France - about €94,400 |
