WatchUSeek Watch Forums WatchUSeek Watch Forums chriscrawfordphoto
I just bought this Seiko 7009-8279-P with the aim of servicing it to wear. I think it is from the late 1970s, but I'm not certain. I love the linen texture dial!
When I got it, it had a huge amount of beat error, 9ms, and was running 117 seconds a day slow. The crown would not push in all the way either. I opened it up and cleaned a bunch of gunk off the area where the back seals to the case. I pulled the stem and found the inside of the crown was…
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