APS new moon phase master The new moon phase uses an integrated movement cal.925, which has been greatly improved through long-term improvements. The difference between the new version of the moon phase master and the old version is the replacement of the moon phase disk, the strap is upgraded to the latest version of quick release, and the buckle arc is increased to improve the comfort of the wearing experience. The disk logo is upgraded from printed to metal logo, and the overall texture is greatly improved.