Seiko SQ100 day-date. Japan mens wirstwatch from 90's. This watch accurately working and good keeping time. Date of last service unknown. Original quartz movement (cal.5Y39A) in very good condtion. This type of mechanism is very durable. Steel original case in very good condition. The watch has very good condition dial, with silver hands and silver indexes. Date chaning very well, has function of quick change of date and day. Size of watch is 35.5 mm without the crown. Lug to lug is 40.5 mm. Original steel caseback in very good condition. The watch has very good condition, original steel bracelet (19 mm) with silver buckle. For big wrist. * All parcels will be sent by Polish Post or another official courier company, I always add a tracking number after shipping and I ship each package as insured. ** Please view the pictures carefully, watches are often used and old, if you have any problem with watch after shiping please first to message me and we will do everything to fix it. Best regards.