This Swiss made watch movement holder is of the highest quality. It is designed to fit the ETA 251.471. The pins in the center are positioned to hold the ETA 251.471 with extreme delicacy to ensure that no part of the movement is damaged while you work on it. It also includes two push pins on the outside that allow you to test some of the mechanics, mostly the chronograph functions, of the watch to ensure a perfect repair. This movement holder is a necessity for anyone who works on ETA watch movements.