The ETA 2326 watch movement is a manual wind movement that features a sweep seconds function. It was likely produced around 1945 and there are several other Venus movements, such as the 78, 79, 83, 84, 88, 89, 94, 97, 98, 103, 105, 106, 129, and 148, that may have varying bridge shapes but the specific differences between them are not known.