This is a classic and reliable vintage timepiece.
The watch is a vintage model from the highly popular Seiko 5 line, distinguished by the caliber and case code 7009-8028.
Model Line Seiko Automatic 7009-8028 Automatic winding, Day/Date display, Water resistance, Diashock/Durable movement,.
Caliber & Case 7009-8028 (The first four digits, 7009, refer to the movement caliber, and the last four, 8028, refer to the case style/version).
Case - Stainless Steel diameter 37 mm excl. crown. It shows some scratches but overall in great conditions
Movement Seiko Caliber 7009.
Movement Type Automatic (Self-Winding). This movement typically has 17 jewels and a 40-hour power reserve.
The 7009 movement was produced from around 1975 to 1996. Watches with the 7009-8028 reference are commonly dated to the late 1970s and 1980s (e.g., 1977 or 1985 depending on the serial number).
Key Functions Day and Date display at 3 o'clock. Quick Set Date. The movement does not hand-wind or hack (stop the seconds hand).