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Thread: HOW TO BUY A SEIKO 6309 DIVER - A Collector's Buying Guide

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  1. #101
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    Re: HOW TO BUY A SEIKO 6309 DIVER - A Collector's Buying Guide

    A local jewelry store is selling this 6309 for a very reasonable price.
    Unfortunately the pictures are not the greatest but from what I can tell it's an '80 that looks mostly original.
    Does anyone see any obvious replacements or red flags?
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  2. #102
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    Re: HOW TO BUY A SEIKO 6309 DIVER - A Collector's Buying Guide

    ^Nothing too obvious from here, but what is the smudge looking whatever on the right side of the 6 o'clock marker?
    What is their "reasonable" price?
    Tick-tock in RoK GMT+9, no DST
    Notable Watches: Parmigiania Tonda 1950, Zenith El Primero Chronomaster, Piaget Upstream, Erwin Sattler Regulateur, Muhle Glashutte Seebataillon GMT, Eterna Madison Spherodrive, Vulcain Cricket 1951 Classic, Bell & Ross Space 3 GMT, Bulova Accutron Astronaut (c. 1966), Omega Speedmaster triple date, Sinn 556 Anniversary LE, IWC Cal. 89 (c. 1957), Pulsar Date II (c. 1971), Grand Seiko SBGT035, Grand Seiko 5641-7000, 7C46-6009 "Ashtray Tuna", 6139-7069 "Blue Eye", 5740-8000 Lord Marvel 36'000, 6309-7040 "Turtle", 4006-7012 Bell-Matic, 6119-6400 UFO...

  3. #103
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    Re: HOW TO BUY A SEIKO 6309 DIVER - A Collector's Buying Guide

    Quote Originally Posted by MediumRB View Post
    ^Nothing too obvious from here, but what is the smudge looking whatever on the right side of the 6 o'clock marker?
    What is their "reasonable" price?
    They wanted $300, which seemed fair. I figured that's about what I'd pay for a SRP777.

    The case is definitely original and unpolished, with only minor dings and scuffs, nothing major. The crease between the brushed top and polished side is still sharp. The inside of the lugs is also very well defined and sharp.

    Bezel and insert are appear to be all original, as the 12:00 triangle extends below the inner edge and the lume pip is the correct size and color. The bezel itself clicks very firmly, but it wiggles around a bit. I'm guessing the bezel gasket is completely gone, which should be an easy fix.

    The crystal has a bunch of very light scratches and scuffs, which gave the illusion of the 'smudge' at 6:00. It also appears to be original as it has a frosted bevel around the edge.

    The dial and hands are in great shape. The seconds hand has a little bit of whitish 'stuff' visible on it about halfway down, but it doesn't look like a scratch, not sure what it is. Lume is a slightly warm white with no pinholes or black spots. It will glow for a second under bright light but fades right away.

    Crown screws down nice and tight, about 2 turns. The threads on the tube don't look razor sharp, but they're still visible and engage tightly..

    The caseback indicates this watch is from March 1980 and is correctly marked Japan A and Suwa.

    The bracelet is marked z1683I and seems to be some kind of vintage Jubilee. The end links don't fit flush with the case so I'm guessing it's from another watch.

    Overall I'm really happy with it as a nice daily wearer. I'm planning on having my local watchmaker replace all the gaskets and pressure test and that's it. I really like the patina on it. I'm looking forward to taking it on its next 39 years of adventures.




    *Edit* Here's a shot of the crown tube, looks pretty good to me and it engages really smoothly with no grinding or pressure.
    Last edited by Crossingrover; December 18th, 2019 at 17:03.

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  5. #104
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    Re: HOW TO BUY A SEIKO 6309 DIVER - A Collector's Buying Guide

    Hey everyone looking for help from the experts out there - I think my 6309-7049 example has some good bones but curious if there are any obvious parts that seem suspicious/non-original.

    To my untrained eye I think the bezel insert is definitely replaced and maybe the crystal. Lume is pretty fainted on the markers and seconds sweep but fairly bright on hands so maybe hands replaced at some point?










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  6. #105
    Member MediumRB's Avatar
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    The lume blob on the 10 o'clock marker is strange shape, but the rest looks alright. I am seeing plenty with uneven lume between the hands and dial, so not a concern.
    Tick-tock in RoK GMT+9, no DST
    Notable Watches: Parmigiania Tonda 1950, Zenith El Primero Chronomaster, Piaget Upstream, Erwin Sattler Regulateur, Muhle Glashutte Seebataillon GMT, Eterna Madison Spherodrive, Vulcain Cricket 1951 Classic, Bell & Ross Space 3 GMT, Bulova Accutron Astronaut (c. 1966), Omega Speedmaster triple date, Sinn 556 Anniversary LE, IWC Cal. 89 (c. 1957), Pulsar Date II (c. 1971), Grand Seiko SBGT035, Grand Seiko 5641-7000, 7C46-6009 "Ashtray Tuna", 6139-7069 "Blue Eye", 5740-8000 Lord Marvel 36'000, 6309-7040 "Turtle", 4006-7012 Bell-Matic, 6119-6400 UFO...

  7. #106
    Member Heljestrand's Avatar
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    Re: HOW TO BUY A SEIKO 6309 DIVER - A Collector's Buying Guide

    Expect that it may be difficult to find a 100% original example and seek out a reasonably unmolested one and enjoy it.
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  8. #107
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    Re: HOW TO BUY A SEIKO 6309 DIVER - A Collector's Buying Guide

    Great watch. Nice survivor.
    Omega 3513.50
    Omega Chronostop Geneve Driver
    Omega Cosmic 2000
    Tag Heuer Carrera Chrono
    Seiko 6309-7040
    Seiko JDM srpc95j1
    Seiko skx007
    Seiko 6318-0011 Yachtsman
    Bulova 666 oceanographer snorkel
    Jules Jergensen solid gold dress with fancy lugs

  9. #108
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    Re: HOW TO BUY A SEIKO 6309 DIVER - A Collector's Buying Guide

    I agree with the bezel insert but everything else looks great. Pip seems too green for original. Seems like the dial lume patina to that nice creamy, tropical color more often than the hand lume, which ages to a more grayish color. This looks right.
    Omega 3513.50
    Omega Chronostop Geneve Driver
    Omega Cosmic 2000
    Tag Heuer Carrera Chrono
    Seiko 6309-7040
    Seiko JDM srpc95j1
    Seiko skx007
    Seiko 6318-0011 Yachtsman
    Bulova 666 oceanographer snorkel
    Jules Jergensen solid gold dress with fancy lugs

  10. #109
    Member Seabee1's Avatar
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    Re: HOW TO BUY A SEIKO 6309 DIVER - A Collector's Buying Guide

    Quote Originally Posted by adhesiv View Post
    Hey everyone looking for help from the experts out there - I think my 6309-7049 example has some good bones but curious if there are any obvious parts that seem suspicious/non-original.

    To my untrained eye I think the bezel insert is definitely replaced and maybe the crystal. Lume is pretty fainted on the markers and seconds sweep but fairly bright on hands so maybe hands replaced at some point?










    Sent from my iPhone using Tapatalk
    The bezel insert is aftermarket as are the hands. After 40 years there's not going to be much lume left and the hands are super bright, a clear indication that they are aftermarket. That said the dial appears to be original and in great condition, lume plots are very typical. It's a good looking watch, enjoy it. If you keep an eye out you might find an original insert to replace the one you have.

  11. #110
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    Re: HOW TO BUY A SEIKO 6309 DIVER - A Collector's Buying Guide

    Great, thanks for all the feedback everyone, really appreciate the keener eyes and experience here. I’ll keep an eye out for bezel inserts.

    I’ll do a search but as well but what are the good online sources for parts to keep an eye on?

    Also, any service spots recommended in the LA area?


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