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Hello to your 6309 from a relative





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6309SeikoSeiko Divers

Available on the marketplace

104 Seiko listings are live on the eBay market and 44 collector listings on the WatchProSite marketplace.

"NOS" SEIKO 5 Five AT Octagon 6309-7340 Lunar Calendar Moon Phase Men's Watch
1,900 USD
Pre-owned - Excellent · JP
View all Seiko on the marketplace → Vintage Seiko 6309-7049 Turtle Diver Day/Date Wrist Watch w/ Hodinkee Strap
1,750 USD
Pre-owned - Good · US
 VINTAGE SEIKO 6309-7040 DIVER UNPOLISHED ORIGINAL RARE COLLECTOR WATCH
1,695 USD
Pre-owned - Good · US
 Rare Seiko 5 "Royal Oak" 6309-5750 100m Automatic Gray Men`s Day Date Watch
1,590 USD
Pre-owned - Good · KR
4 Comments view entire thread 

1982 SEIKO caliber 6309 case ref.# 729A F1 ... aka: Slim turtle

 
By: hmmmcamu : January 20th, 2026-07:42
The second generation of the 6309 diver series produced from 1982 to 1988 , a departure from the original "cushion-case" Turtle. This model features a blue and red "Pepsi" bezel. Its limited original run and popularity among Seiko MODders when it was firs...  

SKX and SLIM TURTLE

 
By: hmmmcamu : January 20th, 2026-16:07
150M SEIKO caliber 6309 case ref.# 729A F1 with black dial 200M SEIKO caliber 7S26 case ref.# 0020 A0 SCUBA DIVER's with blue dial ...