Utilizes a model 25 movement, has been tested, and works. NOTE: I just compared the watch to the time on my phone over the course of a day. It kept time well. The band is a little worn. . The crystal has some small scratches, see pics. The case is in good condition considering the brand and age. 37mm wide, 37.5mm lug to lug, 11mm deep, 61g in weight. Band fits 7in wrists and smaller. Thanks.