7548 rebuild progress... - Seiko & Citizen Watch Forum Japanese Watch Reviews, Discussion & Trading
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Old 04-05-2016, 06:44 PM   #1 (permalink)
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Default 7548 rebuild progress...

A few weeks ago, I purchased a movement, dial and handset for a 7548.
The seller described the movement as "not working at all". The hands and dial were old and showed signs of damage.
I thought perhaps I might use it for a parts watch though, since at the time, I had a 7548 that had some intermittent running issue.
The parts watch also came with a kanji day wheel so I thought it might be of some future use for one project or another.
I first took the movement to my watchmaker and after checking it out, he confirmed that the movement was doa and that a simple battery would not solve the problem. He said he didn't think it could be repaired.
I left it there for a few days; telling him I'd be in to pick it up later in the week. After about a week, the watchmaker called and said my watch was ready to be picked up.
I didn't get the message right away and when I did, I thought it was just an old message. I deleted it and didn't even go see the watchmaker for several days after that.
When I got there, he told me that my movement was all done and ready for pick up.
The strange thing here is that I hadn't told him to fix it. He just went ahead and cleaned and serviced it and now the movement worked like new!
Even though I wasn't prepared for this, it was quite a nice surprise. I'm now in the process of restoring this one to a complete diver but still in need of a couple parts. Getting there though.
Here's a couple photos of before and after.
{replacement jdm dial sourced on Ebay last year because I thought it might come in handy some day, handset and crown with stem sourced here on the forum}.
Mike
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File Type: jpg _20160405_142409.jpg (135.2 KB, 27 views)
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Old 04-06-2016, 11:11 AM   #2 (permalink)
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Looks great. Love kanji day wheel!
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Old 04-06-2016, 11:21 AM   #3 (permalink)
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Looks like the beginnings of a good looking watch, Mike!
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Old 04-06-2016, 04:42 PM   #4 (permalink)
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Thanks for helping me out with the parts Jin. And thanks for the positive encouragement Guy!
Hoping to have this one all complete by next week.
I'm sure someone will mention the "Franken" aspect to the build, but my belief here is that putting these parts together is the right thing to do.
With the 7548 quartz movements, you sometimes get one that has stopped working. I think we've all seen 7546 movements put into cases that originally came with 7548's.
So that was the reason I got the broken movement to begin with, so I could use the parts for other 7548's. I just had no idea that it would end up working perfectly. Now I really have no choice but to complete the rebuild process.
Mike
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Old 04-06-2016, 05:17 PM   #5 (permalink)
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Mike - looking good
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Old 05-14-2016, 03:22 AM   #6 (permalink)
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Default 7548 progress..more photos added

Well, here is the end result.
The sum total of all my efforts to make this watch something closer to what it once was.
All the parts fitted back in the right order; all together like they should be.
The movement happily ticking away for the next generation to enjoy, the case sealed and pressure tested. I can only hope someone will care for me when I'm old and broken the way I've cared for this diver...
But just because the parts are worn out, doesn't mean the time has run out.
{actual quote by me!}

Comments welcome!
Mike
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Old 05-14-2016, 03:29 AM   #7 (permalink)
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Mike that looks superb - great work mate
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Old 05-14-2016, 03:47 AM   #8 (permalink)
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Some work gone into that Mike, good stuff, another insert would do it the world of good (imo)
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Old 05-14-2016, 03:58 AM   #9 (permalink)
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Maybe a "spare" nos will turn up?
Thanks John.

Thanks Paul, for the nice comments. Been trying to keep up with you on all those Arnie's you've been putting back in shape!

Mike
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Old 05-14-2016, 05:48 AM   #10 (permalink)
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I don't mind the insert, but the watch kinda 'deserves' a new one if possible. Either way that's something to be proud of Mike! Good stuff
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Old 05-14-2016, 09:26 AM   #11 (permalink)
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Really nice outcome
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Old 05-14-2016, 05:38 PM   #12 (permalink)
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Nice one Mike, it's given me at least a partial boner because of the Kanji. Kanji does that. Good work brother.
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Old 05-15-2016, 12:44 AM   #13 (permalink)
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Looks great! I don't mind the insert either, I've kept a similar one on my daily 7010 with recently serviced movement and new seals. It works as intended and I don't have to baby it.
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Old 05-15-2016, 03:26 AM   #14 (permalink)
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Yeah,
I didn't really stress at all over the insert. This one's original and that's what I was after with this one.
The scratches are really only visible in the HDR photos. I can't see them when wearing the watch even with my glasses on. I actually only saw them when I uploaded the photos.
The goal here was to get this one back in service again.
I'm grateful to all those who helped out with spares, {thanks to jinugi39 and jeremy L} !!
The stress here was worrying that I wouldn't find all the parts needed to get it done.
The last part was a case back with the correct case markings. I have a few spare 6309-7290's and some 6309-7040's as well as three 7548-700f case backs but didn't have a 7548-7000 case back.
Jeremy was kind enough to help me out with a spare that he had.
In my opinion, the watch is perfect now and I met my goal. Set and met.
Oddly, the case, case back, crystal...everything except that insert are nicer than most of the other 7548's I already had.
In thinking about it further, I guess I really didn't build this one for myself; I built it for the forum.
Thanks for all the team support on this one!
Mike
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Old 05-15-2016, 03:57 AM   #15 (permalink)
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Cracking watches the 7548, and that looks fantastic, well done.
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Old 05-15-2016, 06:40 AM   #16 (permalink)
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Looking good Mike . I have only just realised that the 7548's were the first Seiko divers to get the slim case, in 1978, preceding the 729x auto series by some four years. I thought that the cases were identical, but then my observations of the differences in the bezel lead me to look at the case bodies more and they are not the same at all. Straight away the different shape around the crown, at the back, is obvious, your 7548 being the same as mine. Slightly more subtle is that the back of the case on the 729x is more dished, such that the case back sits less proud, difficult to photograph, but on my pair the dimension between the top of the bezel and the high point on the case back is some 0.5mm less on the 729x, far more than any polishing of the later case could account for.


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