The Felsa 145 is a manual wind mechanical watch movement with a sub-second function. It is part of a group of movements that share similar specifications, such as the bridge shapes, with other A. Schild movements including the 984, 1009, 1010, 1013, 1028, 1033, 1035, 1038, 1048, 1050, 1055, 1084, 1089, 1091, 1141, 1211, 1218, 1231, 1259, 1277, 1285, 1313, 1377, 1440, and 1614. The Felsa 145, specifically, was used around the year 1940.