This Sea-Gull ST1612 is an automatic winding watch movement with a single calendar function and a round shape. The movement measures approximately 5.55mm thick, or 5.73mm including the screw, with a maximum diameter of 26.00mm and an assembly diameter of 25.60mm.
Built with 21 jewels and running at a frequency of 21600, it delivers a 40-hour power reserve. The movement is supplied in a carton packing box.