Rolex, Oyster Perpetual GMT-Master, Ref. 1675, 18K YG on Jubilee Bracelet, Circa 1972 Case: 18K yellow gold, 39mm, three-piece, bi-directional 18K bezel with brown metal 24-hour GMT insert, screwback, No. 2869974 Dial: matte brown, gold luminous dot and baton markers, date window; gold luminous hour/minute hands, gold luminous "lollipop" seconds and large-arrow GMT hands Movement: Rolex caliber 1570 automatic, adjusted to temperature and five positions, pre-quickset, hacking seconds, GMT second time-zone feature, nickel finish, Swiss lever, No. D059256 Band: Rolex signed Jubilee, 18K YG, 19 links, signed Signed: dial, case, movement, clasp