Vintage Seiko Watch Men Silver Tone Square Dial 7820-5400 Stretch New Battery | WatchCharts Marketplace,SEIKO時計7820-5470,Seiko 7820-5490 Quartz Watch Japan 1979 | WatchCharts Marketplace,Vintage Seiko 7820 9000 Dress Men Quartz Watch Japan Round Shape 35mm,SOLD ELEGANT SEIKO GREY DIAL Ref. 7820-5140 Quartz Seiko movement Cal. 7820 All original part (head) New leather strap Size 31 x 35 mm Lug width 16 mm Vintage and very good