Rare Vintage Seiko Avenue Quartz JDM – Ref. 7431-5A80 (Tank Style) ​Up for sale is a beautiful and highly collectible vintage Seiko Avenue from the late 1980s / early 1990s. This Japanese Domestic Market (JDM) model features an elegant, square "Tank-style" stainless steel case paired with an attractive minimalist dark grey/anthracite dial, uniquely styled with geometric indices (triangles and diamonds). It is a perfect blend of classic elegance and retro charm. ​Specifications & Details: ​Brand / Model: Seiko Avenue ​Reference Number: 7431-5A80 [JDM - Japanese Domestic Market] ​Movement: High-grade Seiko Quartz (Caliber 7431) - running strong and keeping perfect time. ​Case Dimensions: ​Width (excluding crown): 28.0 mm ​Lug-to-Lug: 35.8 mm ​Case Material: Stainless Steel ​Condition: Excellent vintage condition. There are minor hairline scratches on the case and crystal consistent with gentle wear, as clearly shown in the high-resolution photos. The original blue protective factory sticker is still intact on the case back! ​Originality: The watch is completely original except for the strap and buckle. It currently comes mounted on a stylish aftermarket burgundy/brown leather strap that complements the dial beautifully. ​Please study the photos carefully as they form part of the description.