Antiquorum Auctioneers Lot soldUSD 0HKD 0 (listed)EstimateUSD 2 058 - 3 086HKD 16 000 - 24 000 (listed) See all lots Piaget Ref. 3820 Antiquorum - Hong Kong Sale Oct 2015 | Hong Kong, 25 October Summary Movement Automatic Year of manufacture 1111 Lot number 162 Location Description PIAGET REF. 3820 SQUARE DIAMOND AND WHITE GOLD Piaget, case No. 72472, Ref. 3820. Made in the 1960's. Fine and elegant, square, hand winding, 18K white gold and diamond lady's wristwatch with an 18K white gold integrated textured bracelet.