Chronograph Jumbo 6138-3002

Large-case Seiko automaticAutomaticA mechanical movement wound by a rotor as the watch moves on the wrist. day-date chronographChronographA watch function for starting, stopping and resetting an elapsed-time measurement independently of the ordinary time display. with vertically arranged round registers. A photographed 6138-3002 example pairs a black dial with yellow chronographChronographA watch function for starting, stopping and resetting an elapsed-time measurement independently of the ordinary time display. hands. Case reference, fitted and specimen date are documented separately.