[New Battery / Functional / Wristwatch] Operation confirmed (including crown functions). Currently running; ready for immediate use. ◆ Product Information [Brand] SEIKO [Model Number] 5931-5270 [Material] Base metal / Stainless steel case back [Dial] Gold [Movement] Quartz [Case Size] Approx. 30.4mm (excluding crown) [Weight] Approx. 26.9g [Lug Width] Approx. 1.8cm [Max. Wrist Size] Approx. 19.0cm [Accessories] None *Any included accessories are shown in the photos. ◆ Additional Information This is a vintage SEIKO watch manufactured in October 1981. It features a classic design combining a square-cushion case with soft curves and a gold dial finished with a vertical hairline texture. With slim bar indices and a three-hand layout, it exudes a simple, elegant, and distinctly vintage atmosphere. The compact case size of approximately 30.4mm makes it a unisex model suitable for both men and women. It pairs beautifully with brown straps, making it a versatile timepiece for everything from formal attire to casual daily wear.