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Post by datilderek on May 26, 2020 8:43:31 GMT -8
Over the weekend I missed out on an auction for the nicest Seiko 6548-7010 6548-700b that I have seen recently, especially for the price. I hesitated because there was patina on the hands and I questioned if the battery had possibly leaked at some point. The watch was advertised as being in excellent running condition with the original packaging for $250. It looked really clean in the pictures, other than the light discoloration on the chrome portion of the hands. Once I decided to take a chance on the watch, it was gone. I know, I should have jumped on it as soon as it popped up.
So I don't miss another opportunity like that...
Are there telltale signs to spot problems with the 6548-70** or 7C43-70** quartz divers? I really like the solid white hands on the 7C43-70**.
Is a light patina on the hands of a vintage Seiko dive watch, especially a quartz something to be concerned about if it is running well?
How much does it cost to have a 7548 or 7C43 movement disassembled, cleaned and lubricated (assuming that it is in overall decent condition)?
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Post by yorkiesknob on May 26, 2020 15:40:06 GMT -8
Hi, patina on hands is not normally related to battery leak. I have 4 of these watches,3 with original hands . These hands are well sorted wear wise and even see through one of them. All are clean as a whistle in side and working as new. If minor leak detected its easy to clean up,plus circuit board and other parts can be source from the more easier to find/cheaper movement 7546. I have just taught myself how to service the train ,not for the faint hearted first time around . But once knowledge gained not too bad if care taken as with all watches I guess. Bottom left is a 7c43.
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Post by datilderek on May 26, 2020 16:27:24 GMT -8
Nice. Now I regret not buying the watch even more.
I have seriously considered doing the clean and restore of the movement myself, but for a super clean example would probably send it to someone with experience. I bought a Pulsar Y513 to practice on before trying a 7548 or 7C43. I'll look into getting an inexpensive 7546 to play with.
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cobrajet25
Needs a Life!
"Underweared curmudgeon!"
Posts: 3,357 
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Post by cobrajet25 on May 26, 2020 21:27:53 GMT -8
I assume you mean a 6458-6010? Like this one?
'Toning' on the hands which doesn't match the lume on the dial is pretty common on these watches. But the black grot seems to happen pretty spontaneously as well. I always thought my '74 0903 beater watch had gotten water in it at some point since the hands had gone grotty. But then I found a NOS 'sample case' and found that the hands had gone bad on it as well.
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Post by datilderek on May 27, 2020 4:01:33 GMT -8
Oops... Seiko 7548-700b I have been looking at a lot of vintage quartz divers, and cross pollinated the model numbers. |
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cobrajet25
Needs a Life!
"Underweared curmudgeon!"
Posts: 3,357
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Post by cobrajet25 on May 28, 2020 0:21:29 GMT -8
Oops... Seiko 7548-700b I have been looking at a lot of vintage quartz divers, and cross pollinated the model numbers.
Gotcha. That looks like a very nice watch. The hands on both the 7548 and contemporaneous 6309-729x seem to sometimes spontaneously lose their plating over the course of 40 or so years. For some reason. Since it is the nature of the beast it never bothered me very much. I doubt that one ever had water in it or a leaky battery.
Fear not. Seiko made hundreds of thousands...perhaps millions...of 7548 divers from 1978 to 1986.  |
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