Delgetti

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Delgetti last won the day on February 15

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About Delgetti

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  1. hairspring studs for Rolex

    Hm, as far as I know the spare part balance ist complete with stud. The part-nr. for caliber 1560 is 7980. Looks like this: http://www.ebay.de/itm/Authentic-ROLEX-Balance-Wheel-Complete-Cal-1530-to-1565-GMT-Part-7980-NEW-/152535101749 The stud is special, it has a triangle shape, which insures correct positioning in the stud holder. I don't know whether it is possible to purchase a single one. I've never seen one on the bay or elsewhere.
  2. Hello, once again I'm working on a landeron 248. I would like to replace the old hands (which are corroded and bent) with new luminous hands. They should look like those which are used in the rolex handwinding chronos 6263/6265. Ranft mentions diameters 1.30 and 1.85, not very common. Does anybody know where I could buy such hands? Thanks in advance.
  3. Help on an ETA 2391

    Ok, I reassembled the keyless works and the wheels for time setting yesterday evening and it works. Thanks to FlyingWatchmakers advice I knew where to look. Here is a pic of the downside of the minute wheel. Easy to spot the 3 mentioned areas which work as springs. I put a very little amount of 9501 in this area and blocked the minute wheel to test. Time setting works with a good feeling of some friction.
  4. Help on an ETA 2391

    @FlyingWatchmaker: Thanks a lot. So the cannon pinion isn't totally fixed to the wheel, but can rotate against it. I couldn't spot that on my watch. Maybe a little amount of grease is needed here as the part was cleaned? I will try reassembly during the next few days and give a feedback here.
  5. Help on an ETA 2391

    Hello, does anybody here know the ETA 2391 or a similar movement? I have to reassemble this one and I have to admit that I don't really understand how the time setting works. I only know the standard design on other movements with a cannon pinion. When you set time, the cannon pinion slides over the minute tube. But on this ETA 2391 there is no seperate cannon pinion, it seems to be fixed to the minute wheel. But how does time setting work with this? Which part can do the sliding? Thanks for any help.
  6. Watch of Today

    No problems with magnetism this weekend.
  7. Now on hodinkee with an explanation of the function: https://www.hodinkee.com/articles/zenith-defy-lab-oscillator-introducing
  8. Today Zenith introduced a completly new kind of escapement consisting of only two high tech silicium parts. http://www.zenith-watches.com/campaign/defy-lab/index.html Here are two additional links (sorry, main article in german language, but some good pics): https://www.luxify.de/weltpremiere-zenith-defy-lab/ https://player.vimeo.com/video/233528319 I didn't really make up my mind right now about that thing. On the one hand it's fantastic brain work and unbelievable performance for a mechanical watch. On the other hand...well...I don't know how to put it. With all this high tech computer-developed material and manufacturing it feels a little bit cold, without emotion and craftsmanship. What do you think?
  9. Watch of Today

    Today I'm wearing this 1969 Speedmaster. The dial colour turned into a nice brown, maybe it got too much radiation on it's way to the moon.
  10. Greetings from Germany

    Welcome! This forum is a great place, lots of info, friendly people. Or to put it with a quote from another Dietl-series: "A bissl was geht immer."
  11. @Gary: You can correct the beat error by manipulating the little lever on the balance cock which is secured with the little screw. After that you can correct the gain or loss by manipulating the regulator arm. Just the rolex 1520 version of what Mark shows here.
  12. Regulating with the Delgetti-key

    Ah, okay, got it. As you can see from the last pic: While the tool head grips over the regulator arm I don't hold the tool in my hand but put it on a book. Then I push the end of the tool in the needed direction millimetre by millimetre. Because of the tools long arm the effect on the regulator is a fraction of a millimetre. I could observe the value on the timegrapher turning down second by second. So in this special case with the 5513 a regulation in steps of a second was possible.
  13. Regulating with the Delgetti-key

    @matabog: Sorry, my english is not that good, I don't understand the question. What do you mean?
  14. I’m working on mechanical wrist-watches for two years now and in this time I came very often to one problem concerning watches with a regulator arm. I wanted a watch to run a little bit slower or faster (let’s say 3 seconds), so I had to push the regulator arm a very little distance. On many of my watches these arms have quite a big breakaway torque, so when I increased force and the arm started moving, it jumped a bigger distance than I wanted it to do (of course this led to a timing “correction” of 20 seconds, not the 3 seconds I wanted). Not my idea of regulating, this is just “try and try again, good luck”. Searching some forums on the internet for a tool to do this better I didn’t find a solution for me. So I had a close look at the regulator arms of my watches, did some measurements and finally built this little tool. The tool head grips over the regulator arm while the watch is on the timegrapher and due to the tools long lever arm (which is about 4 inches) I can manipulate the regulator position very precise. Here are some pics of my work on a Rolex 5513 with 1520 movement. The watch ran constantly +4 seconds per day and I wanted to slow it down to +1 second. No problem with the Delgetti-key.
  15. Regulating a mechanical watch

    There is, but you didn't find it. My favorite link on this topic. http://adjustingvintagewatches.com/category/dynamic-posiing.