Reference 5402ST Jumbo Royal Oak 'A-Series' | A stainless steel automatic wristwatch with date and bracelet, Circa 1972 Dial: tropical, Petite Tapisserie Caliber: cal. 2121/1 automatic, 36 jewels Movement number: XXX Case: stainless steel, case back secured by eight screws Case number: A 1885, inside case back stamped XXXXX Closure: stainless steel Audemars Piguet bracelet with folding clasp Size: 39 mm diameter, bracelet circumference is approximately 170 mm Signed: case, dial and movement Box: yes Papers: no Accessories: Audemars Piguet presentation box and three additional links