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Cmmb8519

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Cmmb8519 last won the day on January 7 2015

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About Cmmb8519

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  1. Hi all, Six months ago I finally took by hobby to the next level and was able to service my Omega Seamaster Professional, valjoux 7750 based movement. I did invest quite a lot on learning how to service the movement and get the right tools and lubrification, and this went very well. The movement is performing over 300° and with zero beat error. But I did not invest on getting the right tools for case closing and water proof test and, as a result, after washing my watch under the tap a couple of days ago I was surprised a couple of hours later with some humidity inside the crystal. I opened the watch straight away and cleaned some small traces of water on the dial and crystal. Question to the group: given that it seemed to be a very small amount of water which I'm not able to find any traces now, would it be enought to leave the watch outside the case for a couple of days to dry out? Or just get to it and make a full service again? Many thanks Sent from my SM-G950F using Tapatalk
  2. Thanks. Here you go. See attached. There are no marks on the plate under the balance or any other marks. Quality seems fairly good. There are 20+ jewels on it. Sent from my SM-G950F using Tapatalk
  3. Hi all, Wife has this fake Daytona that she loves and has been running for 8 years. I decided to give it a service. Tuff customer! Most probable a dummy question, but any idea of what movement it is (see photos)? Any chance I can find a tech spec of it? Thanks! Sent from my SM-G950F using Tapatalk
  4. Hi everyone Just bought by mistake 20ml of Moebius 8213 breaking grease. It seems more fit for brass barrels and has a strong break effect. Do you think in smalk quatities can be used as breaking grease for stainless stell barrels? Should work but I'm affraid thst yhe breaking effect can be too big and break the mainspring. Thoughts? Sent from my SM-G950F using Tapatalk
  5. All sorted and working fine. Thanks very much for all the great ideas and changeling thinking. At the end it was only the oiling of the spheres of the bearing that was creating atriction and stopping the oscilating weight to move with short and slow movements. The 4 small drops of 9010 that I put after assembly were causing this. After a good cleaning and assembly the bearing without lub it is charging the mainspring well. Thanks again!!! Sent from my SM-G950F using Tapatalk
  6. Make sure you treat this movement well [emoji846] The Presmatic 5106 33j is an amazing movement from Seiko, very technology advanced for the time (1969 ich) and Seiko took a few of these for a watch competitiom in Neuchâtel Switzerland at the time. There are some stories that the Japanese government invested a lot for Seiko research on this movement to try and beat the swiss movements. If you can afford go for the new part from counsins. The movement deserves it and you will see that the price on auction for an old 5106 movement can go quite high. Sent from my SM-G950F using Tapatalk
  7. Is the movement stuck in the case? or just the broken screw? If it is just the broken screw in the case try put in the ultrasound machine. I manage to take a few out just with the vibration of the washing machine.
  8. Thanks all. I just gave a good clean to the rotor bearing and with no lube on the bearing balls the oscilating weight is rotating much better. I tested while disassembled from the auto work train and it is rotating for 20+sec with half rotation push. With the watch with no power, the oscilating weight can bring it to life. Another thing I noticed that i don't know if it is normal behaviour!? With the movement outside the case, if i move it around to make the oscilating weight rotate, i can have a much more free rotation in the weight if i release some pressure by giving a little manual wind in the crown. It seems that the oscilating weight struggles a bit to give power to the spring when compared with the manual wind. Could be normal behaviour? I'm not sure! Sent from my SM-G950F using Tapatalk
  9. Are you able to downloaded attached file? I tested the oscilating weight (dissassembled from the remaining of automatic works train) to check how much time it rotates. I put it on the vertical and gave it a half rotating push. It takes 1-2 sec to stop! Does not seem right, does it? I used basic method of put it in pegwood, but tried to handle it as much as possible in vertical. Even if the test setup is not the best i would assume it would rotate for more time. I washed the oscilating weight with the bearing installed in the ultra sound machine and after dried put 4 drops of 9010 on the metal spheres. Thoughts? Many thanks http://cloud.tapatalk.com/s/5bd2ed3b99852/20181026_212210.mp4 Sent from my SM-G950F using Tapatalk
  10. Thanks very much John. This is great information! Kluber P125 only sells in 5g and can get quite expensive. Would you consider Moebius 8213 as an alternative? Thanks again. Sent from my SM-G950F using Tapatalk
  11. Thanks very much John. Great point. Will correct the lubrification. The barrel inside walls on this movement has some grooves that seem to hold the spring from releasing power too easy. When i manually wind the watch i can fell that it winds fully and when it is full i can listen the mainspring passing the groove to release pressure. It seems to me (not sure though) that the mainspring stays in place until fully wind (when i manually wind it). Do you it can have a different behaviour when it winds via the automatic works and it is loosing power at the same time that it winds? Do you have a brand of beaking grease that you would recommend? Many thanks for your commenys and time on this. Sent from my SM-G950F using Tapatalk
  12. The two watches are from different generations. One is Omega movement 1140 (brass) and the other is 3220 (stainless stell). I manually winded both yesterday and set it aside and both are running now for 24h and did not stop yet. No lubrification on the mainspring. I bought it from counsinsuk and I'm assuming they come lubrificated from factory. Isn't that the case? If not what lub should i use? I did lube the internal walls of the mainspring barrel with Moebius D5. Many thanks Sent from my SM-G950F using Tapatalk
  13. If i remove the automtic work from the movement the oscillating weight runs very freely. It reacts quite well by rotating due to own weight. If coupled to the movement and if i use gravity to rotate it, the oscilating weight rotates half or maximum of 3/4 of full turn. It gets even harder to rotate if the watch is fully winded manually. I'm inclined to think something is not well assembled in the barril spring or related parts. Sent from my SM-G950F using Tapatalk
  14. Thanka very much Joe. Are you suggesting to install the mainspring and assembly the watch without putting the lid on the barrel? Apologies, but just checking i understood it right Sent from my SM-G950F using Tapatalk
  15. Thanks all. I have Lubeta V105 at home but did not use it on the reversing wheels since I'm assuming they come lubricated from the factory. Do you think that is not the case? I will look at the cyclotest and double check any rubbing on the case back. I don't think this is the situation but will check. Could it be the fact that I replace the mainspring and it is not exactly the same? I ordered it to Cousins UK for the ETA 2892 movement so it should be fine ... I hope! I measured the old mainspring: Height=1.04; Thickness=0.115; Length=450 The order of the mainspring from CounsinsUK shows: 1.05x0.115x420 So the mainspring should be fine ... I think! I'm still confused with the fact that I service both watches and they are showing exactly the same issue ... what could have gone wrong on both that is making the watch stopping after 6 days of use if not manual wind??? Thanks all
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