vintage unknown, probably mid 1980s, model number 15 22 533, serial number 711894, the signed square white dial, 20mm wide, with black Roman numerals, blued hands, date window at 6 o'clock and chemin de fer chapter ring, quartz movement with liveried crown, case, 25mm wide, 5mm thick, gold bezel and sides of blackened steel, verso steel, with 8 screws, marked MARINER SG 15 22 533 711894, to an integral tapering blackened steel bracelet with gold bar spacers, terminating in a liveried fold over clasp with safety clip