vintage unknown, model number 317, serial number 000814, circular white dial with black dot minute track, blued hands, centre chronograph sweep and subsidiary dials for running seconds with integral date window at 6H, minutes at 9H and hours at 3H, 22 jewel quartz ETA movement number 251272, with start/stop and rest pushers above and below the two stage liveried crown, case, 38mm diameter, verso snap on, signed and numbered, to a black strap with steel pin buckle