AUDEMARS PIGUETRoyal Oak. Perpetual Calendar. Origin: Switzerland, Le Brassus. Date: 1994. Clockwork: Automatic, Cal. 2120/4. Case/Wristband: 750/- yellow gold, link bracelet with folding clasp, white dial, gold-colored indices, blued and gold-colored hands. Total Weight: ca. 183,5 g. Measurement: Ø ca. 42,5 mm, length ca. 19,5 cm. Case-No: D33007. Reference-No: 25654.344. Movement-No.: 374007. Description: Wristwatch with 2 hands with perpetual calendar, month indicator on totaliser at 12 o'clock, date indicator on totaliser at 3 o'clock, moon phase at 6 o'clock, weekday indicator on totaliser at 9 o'clock. Automatic winding with oscillating weight made of 21 carat gold. Invoice, warranty and revision invoice from 05/2011 enclosed.