One of the more rare Seiko Thin Hand Winding Watches. Seiko Home Market model, reported not generally available outside of Japan, by special export order only, so a very rare model in Europe. Very thin for mechanical movement at 5mm thick The mechanical movement is one of the highest quality Seiko movements, and when tested keeps excellent time. This is one of the best 24J hand winding 2220 movements made. Case is 28mm wide with crown Original dial. New black leather textured band will fit a ladies or gents wrist with strap holes at 16.5 - 21cm Water resistance is not known. Serial number 725183 (February 1977) Will be sent gift boxed, track and trace, or can be collected from ~10 miles from Norwich City Centre area UK