Sinn Exclusive Vintage Swiss 1970s Automatic winding movement Sinn Swiss calibre based ETA 7750, 25 Jewels Stainless steel case Diameter: 40 mm without crown Screw down steel caseback Case serial: 227331 - S Day/Date index; quickset Crystal material: Glass Strap: Stainless steel, signed Sinn Strap lug width: 20 mm Wrist circumference: about 20 cm Very good condition with thin visible traces of use Movement and functions work very good Read the Terms and Conditions and review the photos very carefully before buying. The watch will be carefully and properly packed and shipped by registered and tracked UPS and FEDEX for worldwide Fast and safe shipping. Estimated delivery time: 3-8 business days Custom fees belongs to the buyers