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About ricardoch

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  1. Hi Steve, Thanks for your comment. I'm really not sure which brand it's , as per the shape and touch I think it could be 3M wetordry sand paper, possibly 500 grade, used dry, but again not sure, as it was a tiny piece lying around that I used to test, and liking the result decided to go ahead. Any sanding paper will do as it only lightly scratches the surface with very little pressure. Maybe the only important thing is to use a good quality paper to avoid too much debris. I think omega's original grind is a little deeper, but as it looked great didn't tested any coarse grade. I hop
  2. Hi all, I have had to install several times second hand on my omegas (10xx) that were a pain due to their soft spring. I have not an omega holder, so I made my own "tool" from a piece of copper wire with the end filed flat. I removed the auto weight whose axle lays just below seconds pinion, and dropped the wire to just lay on the seconds pinion. Then marked the wire where it exits from the rotor hole and bent it from the mark to make an "L" with the shaft measuring just the length from the rotor base to the seconds pinion. Let it go through the rotor hole and check that shaft goes al
  3. Hi, I hope you all are fine Those days I found an old omega f300 cone case sleeping on the drawer polished as a mirror when I bough it, many years ago cheap as scrap. I decided to give it a try and among other tasks, rescue it's finish, and discovered that it's impossible to do it by hand, each run marks his scratches in a different direction giving even worse impression than mirror polish, so decided to take the challenge of scratching it in a radial and homogeneous pattern. I read somewhere a post about redoing an Omega cone surface, and found it really difficult, doing suppor
  4. Hi and thanks to all, f300 are (IMHO) the "easiest" to fiddle among the tuning fork watches, they are built into two different modules one for the fork itself with the index wheel and the other for the watch itself, but any case really tricky even with a good microscope and firm hands (no my case) I dared to touch some, incredibly easy to break or unset the fingers and very delicate to adjust, but never tried even to touch any accutron (the original and first diapason watch)) I hope to learn a lot from your awesome knowledge and ideas, and share some of my projects, usually very simple
  5. Hi Tudor, Again thanks for your help. I'm thinking in alcohol diluted shellac, you could do it as much fluid as required and it evaporates reasonably fast in thin layers, hot shellac is too viscous to penetrate the junction walls, I tested other piece and it seem to stay in the surface. I'm testing different densities and ways for it's application, as well as trying to discover if alcohol damages it's adherence, .by the moment it delays a lot evaporating thick layers, so must try different application procedures I panic only thinking in soldering that piece, may be a good solution, bu
  6. Hi Tudor, Thanks a lot for your advise. I considered it as the best solution. Later I discovered that manufacturer did it with an hexagonal 0,5 mm stake, but seems it does not work as expected, as could be seen in the photos of same watch I could find on Internet, almost all are out of "synchrony", so I have my doubts and, any case, I don't have any stake to try it. The pinion diameter is around 0,5 mm diameter at the junction, trying to drive a 10 mm wheel, so the relative torque is so huge that it overcome the manufacturers expectations (I wonder who calculated it, maybe a floating
  7. Hello, I hope you all are fine. 10 or 12 years ago I bought a "rare" cheap movement, it had a big plate and hour ring, but no dial, hands or crown, as "longines" was printed in the auto rotor, it was a cheap toy to play with, but it slept in the drawer since then. Recently I got back to watches and after long search, I find the movement looks like the Longines GMT model, and was lucky to find a "longines" cheap dial that fit 2824 and a chinese case that can hold the big plate, the movement seems to have married so many times that it will not mind new alien parts. The problem I found
  8. Hi, and thanks for the greetings, I have some accutrons as well, I discovered through the expensive path that you could destroy a tuning fork watch if you dare to more than watching it, although I was able to revive some thanks to old stock bought years ago, but quite expensive in today's market. I promise that I will never touch an accutron further than hands, dial or keyless, but was able to repair and adjust some ESA and Omegas. those movements are far easier than bulovas, even with my hands and a microscope. Not dealing with tasks as I only dream with better tools, but keen to learn
  9. Hello, First excuse if any unconvenience, English isn't among my best skills. I fall in love with watches (and clocks) as a child, I break my first "Cauny" watch around 7. I persisted and was able to repair some from fool family member watches. Work keep me away from hobby long time, although I was able to join several cases, watches and parts that today I try to revive in my 60's, with a pair of shaky hands and poor eyesight. I have a few tools and little knowledge, but found that your're an inveluable resource to fill my infinite gaps, I'll try to not bother you too much asking for hel
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