6309-5820] Found in my late uncle's belongings. Real or fake? : r/Seiko
RARE VTG SS GRAY DIAL 6309-5820 SEIKO 5 JAPAN DAY&DATE MENS AUTOMATIC WRISTWATCH | eBay
New Old Stock Seiko 5 automatic vintage watch, 6309-5820, casual, elegant & strong watch, 7009A movement, new old stock, gray dial, Baton hands, perfect condition, original bracelet & hang tag
Seiko B1079S Watch band 6309 5820 - SDED13 stainless steel 19 mm - 5 - Watch Plaza
Seiko 5 (6309-5820) Price Guide & Market Data | WatchCharts