Audemars Piguet Royal Oak Perpetual Calendar / 25820BA.OO.0944BA.02

Royal Oak Perpetual Calendar. 18K yellow gold case 39mm fitted with an octagonal bezel with 8 pieces 18k white gold screws on the bezel, one on each vertice of the octagonal design. Silver dial with luminescent hands, luminescent index hour markers, perpetual calendar display subdials at 12, 3, and 9 o'clock and moon phase display subdial at 6 o'clock. AP 2120/2802 caliber self winding movement with 40 hours power reserve. 18K yellow gold bracelet with push-button folding clasp.