The Kienzle 147/30 is a period 1908-open face calibre watch movement. Late samples of this movement display modified bridges on the dial side. The options available for this movement include a bimetallic screw balance and a Breguet hairspring. Additionally, the Kienzle 147/30 does not have a setting-lever spring as the crown is capable of latching without it. This movement encompasses various functions, including a stem-wind chronograph with durations of 60 seconds and 30 minutes, controlled by a pillar wheel. It also features a sub-second display. The Kienzle 147/30 movement has been in use since 1908.