PIAGET. AN 18K GOLD AND DIAMOND-SET MYSTERY WATCH WITH ONYX DIAL
SIGNED PIAGET, CIRCA 1970
With nickel finished jewelled lever movement, the pavé-set diamond and onyx dial with central rotating onyx disc set with one diamond to indicate the hour, gilt dauphine hand to indicate the minute, the circular case with drop-shaped lugs, back secured by four screws, together with an 18K gold Piaget buckle, case, dial and movement signed
29 mm. diam.