This Certina Vainqueur is dated to the mid-late 50s. It has inhouse cal. 410 15 Jewel movement in it, professionally serviced – cleaned and oiled and keeping good time. The case and the back have been lightly polished – now looking good and sharp. Certina Signed case back with serial number #40170 2. Dial looks mesmerizing – ivory color with some patina on it, that only adds to the overall vintage look. Crown is good. Fitted with a brand new Genuine leather strap with a matching buckle.