This Rotary, from about 1961, houses the first Swiss electric movement, the Landeron 4750. The texture dial on this watch is particular striking and is identical to the dial on the Everite, which also contains the same movement.

Most Landeron 4750 movements have the watch maker's name engraved on the balance plate, but this one is a little boring only being marked "13 jewels swiss" --- one more than the Everite's 12 jewel movement!