This is a Seiko watch. The 5S21 movement indicates it's a sweep-hand model, known for its mechanical-like hand movement. This model was only available from around 1988 to 1993, with only a few models like Dolce and Spirit. The markings on the case back confirm it was manufactured at the Suwa factory (Suwa Seikosha). The battery level is unknown, but it is currently running as of the listing. There is no catalog information for this watch, making the details scarce. Based on estimations, it has a Hardlex crystal. Similar designs can be found in the Avenue's Trad series, but those are step-hand models with the 5P31 movement (like SAKR032). It has a vintage watch feel, reminiscent of designs seen in Longines' Heritage line. The lug design is a pseudo-wire lug. Therefore, the actual lug width is 16mm, but the wearable belt has a slightly wider fit (similar cases used to have 17mm belts, but it currently has an 18mm belt). The aftermarket strap is a Maruman calfskin, made of Italian leather. Due to the special lugs, quick-release straps are not compatible. The buckle has been replaced with an aftermarket one. The case has minor scratches and slight dirt. The crystal appears relatively clean. The dial also has minor dust. The strap is only slightly bent. The buckle has only minor scratches. Overall, it is in reasonably good condition, but please understand that the watch itself is old. Color: Gold Dial: White Retail Price: Unknown Model Number: 5S21-0A10 Case Size: 38mm Lug Width: 16mm (as mentioned above) Wrist Size: Free Movement: Cal. 5S21 (Sweep Quartz): ±20 seconds per month Please understand that this is a used item. The shipping method will be the cheapest anonymous delivery option, so it will be simply packaged (box + bubble wrap). Thank you. Dial Color: White Strap Color: Black Accessories: None Operation: Good Scratches/Cracks: Yes