Rolex. A fine 18K gold, ruby and diamond-set self-winding water-resistant dual time zone wristwatch with sweep center seconds, date and bracelet

Rolex. A fine 18K gold, ruby and diamond-set self-winding water-resistant dual time zone wristwatch with sweep center seconds, date and bracelet
Signed Rolex, Oyster Perpetual, GMT-Master, Ref. 16758, circa 1983
With nickel-finished lever movement, 27 jewels, the gilt brushed dial with applied ruby-set triangular and baton indexes and applied diamond-set circular indexes, luminous Mercedes-style hands, additional central hand for the second time zone display, sweep center seconds, magnified date aperuture, the tonneau-shaped water-resistant-type case with revolving black bezel calibrated for 24 hours, screw back and screw down crown, together with an 18K gold Rolex Jubilee bracelet and clasp, case, dial and movement signed
40 mm. diam.