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praezis

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praezis last won the day on September 29 2018

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About praezis

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  1. Hi, it was mainly filing and a bit grinding. Origin was a steel tweezers of this type, which I had a lot of: Some pictures of the curve tweezers: Frank
  2. Hi Theo, your movement is a Damas 9 (height 5.2 mm). Mainspring 1.9 x 16 x 0.20 The jewel has more than a 'slight' chip and should be changed. Also the pivot shows considerable wear! Frank
  3. No. They indicate that the 1st pulse of the tic noise was too low to be detected. A later, higher pulse in the noise triggers and gives a displaced (=later) dot. Frank
  4. My advice is, go to a watch repair shop and have it adjusted, what is a matter of seconds. But be aware, that rate changes - cased / uncased - on the arm (warm) / on the desk (cold). So such adjustment should be made after wearing a quartz watch for some weeks and then just correct the resulting real-life error. Trimmer: which direction gives fast/slow is undetermined! The trimmer is a variable capacitor with 2 halfround conducting areas, the upper one can be revolved without a stop. Picture shows lower (red) and upper (blue) part of the trimmer: Frank
  5. I have to agree with jdm (btw. what is your country?), getting a ton of steel is no problem here, but getting a 1 meter rod is. At least the supplyer will charge his minimum fee which is equivalent to several 3-m rods. However "silver steel" is available at many online model engineering shops. Frank
  6. First, the shown deeper lock (esp. 2nd photo: too deep) seems not very likely to reduce the amplitude so much. If it is a pallet or a banking pin issue, is not difficult to find: essential is the point, where the wheel tooth hits the pallet jewel. The pallet fork must move a bit more then for security, until stopped by the banking "pin". If this movement is considerable, the banking pins (hrer: gap) are too wide else the pallet jewels are too long. Frank
  7. Did you buy that set because of that black stamp? Probably someone can say "Mission accomplished" then. Else such tools are unmarketable today. Even in 1944 (wartime, always desirable items) that set was outdated by far. Frank
  8. Hi CB, can you explain more detailed, how to distort the banking pins for higher amplitude? Sometimes I would love to apply such distortion... Frank
  9. Sometimes this is the "reward" for cleaning well. If you do not want to change to a thinner mainspring (the usual remedy), you can open the banking pins a bit. This will take more energy from the escapement during unlock. Frank
  10. Mainspring sizes of 4033 are: 1.40 - 10.5 - 0.11 according Flume tables. Frank
  11. Not a real Breguet coil and a good bit out of center, but I'd say: not bad for the 1st time! Frank
  12. As clockboy advised: easiest is a new (blued) hand. Length must match, at least not shorter. Bore of the tube (probably 0.26...0.28mm) can be adjusted. Else a new tube can be made and rivetted to the hand. Frank
  13. Hello Ken, regarding age, complexity and probable wear of the movement, I would say the estimate is reasonable. You will have to pay similar for European/US service by experienced pros. The chronographs coming from Asia to my workshop were all butchered in some way and in worse state than an defective but untouched watch. If the watch is worth such investment will be your decision. Frank
  14. In the 1st picture it looks like the lower part of the pallet fork (between banking pins and balance) is bent. This makes your problem. Frank
  15. Funny, but - you cannot pay incredibly low prices and expect professionally executed tools. Not fair IMHO. Some of the cheap tools can be improved easily with little effort to get a still cheap but usable tool. E.g. change the brass screws against steel ones for few cents in the above mentioned Indian screwdrivers. You can even use swiss blades. BTW loose screws and dropping blades will annoy you with swiss/french screwdrivers, too! For years now I use a cheap Indian sliding pin tong for holding certain barrel arbors. Initially a ridiculous tool, after machining the suitable opening it serves its purpose perfectly. Frank
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