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The Water Cooler
General Discussion
New Watch Rebuild – Stunning 70's Seiko Bullhead – Dual Register Chronograph – OSA Owned – Tons Of Pics
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<blockquote data-quote="thor447" data-source="post: 3951436" data-attributes="member: 24867"><p>After it's run in period I did just a tiny amount of final regulation. Afterwards I installed it into the case.</p><p></p><p>[ATTACH=full]341410[/ATTACH]</p><p>[ATTACH=full]341411[/ATTACH]</p><p>[ATTACH=full]341412[/ATTACH]</p><p></p><p>Here is the final timegrapher readouts. It now has an excellent amplitude for this movement, with clean trace lines, etc. It's running very well.</p><p></p><p>[ATTACH=full]341415[/ATTACH]</p><p></p><p>With the watch assembled and running great I installed the NOS bracelet. Here's a photo of the old one next to the new one.</p><p></p><p>[ATTACH=full]341413[/ATTACH]</p><p></p><p>This watch is a real stunner. It was a real pleasure to work on it, even if it did cause me to pull my hair out a time or two when trying to trace down where the power loss was coming from. Thanks again to the owner for trusting me with it.</p><p></p><p>[ATTACH=full]341414[/ATTACH]</p><p>[ATTACH=full]341416[/ATTACH]</p><p></p><p>If it wasn't evident by the length and detail of this thread, I am a big vintage Seiko nut. I especially love these 70's era chronographs. I have one really special first year 'Proof' model UFO I've fully rebuilt for myself, and three others on my bench waiting on future repairs & rebuilds, which will one day go into my watch box.</p><p></p><p>[ATTACH=full]341417[/ATTACH]</p><p></p><p>Technically speaking I only had 3 of these watches a short time ago, but working on this Bullhead really pushed me over the edge on getting one for myself. So while I was rebuilding this one for one of our longtime fellow OSA members, I ordered a really cool old brown/tan Bullhead for myself. It has some mechanical issues. The hammer spring is broken, and the bushing for the minute recording wheel is just flat out missing from the chronograph bridge. Needless to say I got this one for a good deal. All of it is fixable though, and the missing bushing will be upgraded to a jewel. This one is not in the same condition as the one in this thread, so I'm not worried too much about originality. It is going to get the full treatment and will look like it did the day it came out of the factory when all is said and done. I don't know when I'm going to start on it, but it'll probably be sooner rather than later since now I don't have that gorgeous blue/black Bullhead on my bench staring back at me!</p><p></p><p>Well, this is far and away the longest watch rebuild post I've ever done. I have absolutely no desire to go back and read through it to check for spelling and grammar, so any mistakes on my part in that area will just have to stay that way! My fingers hurt, and I'm about to go enjoy a glass of iced tea and some Star Trek. A good evening to you all!</p></blockquote><p></p>
[QUOTE="thor447, post: 3951436, member: 24867"] After it's run in period I did just a tiny amount of final regulation. Afterwards I installed it into the case. [ATTACH type="full" alt="46.JPG"]341410[/ATTACH] [ATTACH type="full" alt="47.JPG"]341411[/ATTACH] [ATTACH type="full" alt="48.JPG"]341412[/ATTACH] Here is the final timegrapher readouts. It now has an excellent amplitude for this movement, with clean trace lines, etc. It's running very well. [ATTACH type="full" alt="72.JPG"]341415[/ATTACH] With the watch assembled and running great I installed the NOS bracelet. Here's a photo of the old one next to the new one. [ATTACH type="full" alt="70.JPG"]341413[/ATTACH] This watch is a real stunner. It was a real pleasure to work on it, even if it did cause me to pull my hair out a time or two when trying to trace down where the power loss was coming from. Thanks again to the owner for trusting me with it. [ATTACH type="full" alt="71.JPG"]341414[/ATTACH] [ATTACH type="full" alt="73.JPG"]341416[/ATTACH] If it wasn't evident by the length and detail of this thread, I am a big vintage Seiko nut. I especially love these 70's era chronographs. I have one really special first year 'Proof' model UFO I've fully rebuilt for myself, and three others on my bench waiting on future repairs & rebuilds, which will one day go into my watch box. [ATTACH type="full" alt="300.JPG"]341417[/ATTACH] Technically speaking I only had 3 of these watches a short time ago, but working on this Bullhead really pushed me over the edge on getting one for myself. So while I was rebuilding this one for one of our longtime fellow OSA members, I ordered a really cool old brown/tan Bullhead for myself. It has some mechanical issues. The hammer spring is broken, and the bushing for the minute recording wheel is just flat out missing from the chronograph bridge. Needless to say I got this one for a good deal. All of it is fixable though, and the missing bushing will be upgraded to a jewel. This one is not in the same condition as the one in this thread, so I'm not worried too much about originality. It is going to get the full treatment and will look like it did the day it came out of the factory when all is said and done. I don't know when I'm going to start on it, but it'll probably be sooner rather than later since now I don't have that gorgeous blue/black Bullhead on my bench staring back at me! Well, this is far and away the longest watch rebuild post I've ever done. I have absolutely no desire to go back and read through it to check for spelling and grammar, so any mistakes on my part in that area will just have to stay that way! My fingers hurt, and I'm about to go enjoy a glass of iced tea and some Star Trek. A good evening to you all! [/QUOTE]
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