Seiko 5P31-5A80 Vintage Stainless Steel GP Quartz Mens Watch Authentic Working | eBay,Seiko 5P31-5A80 Vintage Stainless Steel GP Quartz Mens Watch Authentic Working,1988 Seiko Session Quartz JDM Ref.5P31-5A80 Soft Grey Dial Original Seiko Bracelet Ref.SS03A•L Case Dim approx 24,5mm w/o crown Diameter approx 25,7mm with crown Lug to Lug approx 28,7mm Produced January 1988/1998,Seiko 5P31-5A80 Vintage Stainless Steel GP Quartz Mens Watch Authentic Working | eBay,腕時計メンズ電池交換済みセイコーSEIKOクォーツ5P31-5A80中古アナログ - メルカリ,