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  1. Howdy, Well, this is my first effort of a watch repair. I have been fascinated with watches, clocks and all kinds of mechanical things since a young age. I decided at this time that working on watches would be a great hobby/interest to take up in my later years. I have already spent some time learning to refurbish and repair fishing reels in the last few years. So here is my first repair attempt. Interest in tinkering watches started when I dropped my Seiko SKX009KD diver to the tile floor in the bathroom. Was not too good an idea to put a watch on there with a towel thrown over it, pulled the towel and down comes the watch, face down on the tile floor. Needless to say, I picked it up and took a look, nothing seen. Then I shake it and hear a rattle. Not too good! So I did some research on the 7S26C movements. Read a lot of information and watched a lot of videos. Thanks to all that makes this information available. So I purchased a cheap watch tool kit from Amazon. I had other watches that needed batteries and some strap work anyway. I knew the kit would not be 'pro' grade, but it was a nice kit with all the basic tools needed. Back to the rattle, I figured the Oscillating Weight (OW) had become separated from the bearing. So I used the case back wrench in the kit and opened the back, and sure enough that was the problem. I looked on-line for a replacement OW but could not find any except one on Ebay for $35! So I decided, what the heck, I'll try to repair this one. So, here is what I did being a little mechanically inclined but never at this small a scale, I performed the following: 1) remove case back. 2) examine the OW, it was dislodged/loose from the bearing. 3) remove center OW bearing from center post. 4) place OW on a small anvil, then use a small pin punch from the kit as to carefully work the metal around the OW's hole as to make the bearing hole smaller. 6) After enough working with the punch, I took a smooth round stone and gently kept working the ID of the OW hole until it just would friction fit to the surface of the OW bearing. 7) carefully press fit the bearing into the OW, I knew too much pressure would ruin the small bearing races and ball bearings. 8) finalized fitting of the bearing to the OW by applying a very small amount of red Locktite thread locker using the end of a pin as an 'oiler'. 9) I then let the OW set for a day to cure the Locktite 10) install OW per alignment instructions in the 7S26C technical guide. At this time I also wound the mainspring up 8 turns to check the power, it ran for about 40 hours. 11) did not have any watch oil, so I used a very small amount of some 10W synthetic engine oil using a small pin as the oiler to lubricate the OW bearing ONLY. It appears to be a successful repair for now, watch been running great and keeping good time for about 2 months. I'm sure something else might have gotten damaged during the fall, especially the balance assembly, but then again the watch is working fine for now. I might use this particular watch to dive deeper into the 7S26 movement at a later time. Kind of happy for now. Got 2 other watches running with new batteries, fitted some straps and having fun with my new hobby. Look forward to learning some more. Now to find a 'bag o watches at a flea market and get busy. I know I'm going to need more and quality tools down the road, that's OK with me. Cheers, Chip ---
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