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oli

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oli last won the day on December 19 2017

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  1. CousinsUK sell a German orangewood grade which is very good indeed.
  2. As above, definitely use pegwood. I find that the quality of the pegwood makes a significant difference as well, some grades are easier to sharpen to a perfect shape. The indian orangewood sold by cousins, although a step up compared to toothpick, is not up to the job for small jewels found in watches.
  3. No worries. Good luck fitting the pin, not the easiest job!
  4. Cousins do sell them, item S37393
  5. Thanks John and no problem at all, I completely understand!
  6. JohnR725 would you have a link to the whole document by any chance? It is the Omega technical instruction if I am not mistaken, I have been looking for this one without any luck...
  7. Also it is preferable to remove the stem when the crown is in hand setting position on this movement.
  8. Got this as part of a watchmakers tool lot. In fact I got two of them! Does anyone have any idea what it is? (Loupe included for scale)
  9. Since all parts look ok it is possible that they are, but something is interfering with the oscillating weight? Perhaps caseback rubbing very lightly in certain positions? Do you have access to a cyclotest? This would completely rule out wearing/ activity patterns, since this can be influenced by so many factors, the cyclotest is a nice consistent baseline. The Chinese ones are cheap and do the job nicely, worth investing if you work on a lot of watches.
  10. If you know your way around a standard 7750 you should not have any trouble at all, there is not a lot more to it.
  11. I can think of be several causes for poor power reserve- Inefficiency in the auto winding mechanism (can be caused by a number of things, e.g. wear, contaminants, and dry lubricant). - Mainspring bridle slipping too early during winding (usually a wear or lubrication issue in the mainspring barrel)- Watch stopping before the mainspring is fully unwound (usually caused by particles/ dirt or a defective / worn part). In this case the full power reserve may have built up in the mainspring as it should, but watch stops when it comes to a lower state of wind.
  12. Try windingstems.com, you can search by the Ronda number. looks like this one will fit a number of Tissot movements.
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