Stainless steel. Automatic. Black dial, creme coloured tritium indizes and hands, date aperture, subsidiary second, second time zone hand, labelled 'Rolex Oyster Perpetual', 'GMT Master Superlative Chronometer Officially Certified' and 'Swiss - T<25', back side numb. 555. Red-blue lunette with arab. numerals. Rolex folding clasp marked. Visible traces of usage. Diameter 39 mm, weight c. 91 g.