1,35 volts battery especially made for Accutron watches with diapaso as the Bulova watches.
Battery spacer formed of an outer white ring made of insulating Delrin; the center contains the movable stud made of conductive copper making contact with the negative pole of the battery. If you combine this spacer with the battery PX 625 you will create a battery to be mounted on cartier clocks. This spare parts is not original.