Grade: 21 Jewel, Unitas 343. Size: 39.75MM Diam. X 7.6MM Center Thickness. Winding: Not Sure, Broken – Off Stem. Setting: Not Sure, Broken – Off Stem. This movement has not been checked for duration or accuracy, even if it is described as “running”. I comply with U. The item “Solar Pocket Watch Movement 21 Jewel…