movement holder DuroplastUniversal movement holder made of plastic with base Ø 31mm and adjustable hollow centre screw, suitable for the hand press bars of Boley and Bergeon. Swiss-Made. Products namesizecalibresupport screwpusheritem No.movement holder11 1/2ETA 2892 / OME 114012511669movement holder13 1/4'''ETA 7750 - 777022511670movement holder10 1/2ETA 251.471 / 251.47222511671movement holder13 1/4'''ETA 251.262 / 251.265 / 251.27224511672