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1-17 of 17 Results
  1. Watchmaking
    Hello there, I'm wondering if moebius 9501 would be a suitable braking grease for a mainspring? Personally when servicing watches I've never touched the mainspring but my most recent purchase may require me to do so, especially since it's my first chronometer certified watch and I'd like to...
  2. Vintage & Pocket watches
    Hello! I have been attempting to fix this WWII Bravingtons Swiss made pocket watch (Electa I believe?). I am struggling to find a mainspring with dimensions 2.8 x .25 x 500 x 16.7 (Height x thickness x lenght x barrel size (mm)) with a hole (TR) attachment. I will also need a replacement stem...
  3. Watchmaking
    You measure carefully and order a replacement mainspring. It arrives and the central loop or "eye" for the arbor is too large. Can you reduce this eye on a modern alloy mainspring? I have had this happen twice now and have yet to successfully reduce the diameter to fit the arbor. Thanks, RMD
  4. Russian watches
    I'm servicing my very first Poljot 2614.2H movement and I want (and probably need) to replace the mainspring. I thought eBay would be full of them, and if not, I was pretty sure I was going to be able to order a suitable replacement from cousinsuk.com, but no, no luck! So, any tips on how to...
  5. Public Forum
    I have been reading an old patent for research, and it said that the barrel in the system displayed had about a 30 hour power reserve and needed 4 turns of the arbor to wind. It did not, however, mention the size or the amount of teeth on the barrel (or any of the other gears), so I don't know...
  6. Russian watches
    Hello All! First time poster here. In need of resident Vostok experts' guidance. I understand that the automatic Vostoks (2416, etc) incorporate a slipping clutch mechanism in the mainspring to prevent overwinding from the rotor, common to most automatics. Conversely, it seems that the manual...
  7. Watchmaking
    This is my first post, after a year or so of reading from this site while attempting to fix watches. Whenever I searched Google to hopefully remedy a problem, it seemed as if the issue had already been addressed by members of this site. My current issue deals with a 1955 Hamilton "Lyndon" cld...
  8. Vintage & Pocket watches
    Hi, I'm restoring a old ingersoll trench watch and have had a lot of trouble finding a suitable mainspring. The original mainspring was 240 X 18 X 14", the closest I can find in the market is a 240 X 18 X 17 3/4" mainsping which is 3.5 inches too long. Someone told me that I could cut the extra...
  9. Watchmaking
    I recently bought some old elgin pocket watch movements off eBay. They are of varying sizes and all are early 1900's pocket watches. I've taken one apart and cleaned the parts in an ultrasonic cleaner. However, while I have it apart, I wanted to test the mainspring. It's currently in its barrel...
  10. Watchmaking
    My current victim is an Illinois WC 15 jewel "Getty" style watch, size 16s, model 5 (crescent moon-shaped click and 3/4 plate). I picked it up at an antiques mall and it would tick a bit and then stop. So, I opened the mainspring barrel and found the blued spring broken where the innermost...
  11. Watchmaking
    I'm not the Hulk, I have no idea how this happened as I am an engineer by trade and like to think I have a modicum of mechanical sympathy. However I have managed to snap the mainspring on my Tissot Seastar. Does anyone have a good lead for sourcing a replacement or even getting it fixed at a...
  12. High-end watches
    Girard-Perregaux's R&D department was able to develop a new breakthrough: a constant-force escapement based on a revolutionary concept founded on the elastic properties of a silicium buckled-blade. This component, thinner than a human hair, delivers constant impulses of energy to the oscillator...
  13. Watchmaking
    Basically 5 elements are needed. It's this simple:
  14. Watchmaking
    hi, how would i let down the main spring on a pocket watch with no crown, As i cant move the click and slowly let it wind down? thanks
  15. Public Forum
    Hi there I'm rather ashamed to say that I think I've buggered up my watch and need a bit of advice. Pls - no laughing. I've got an Ingersoll Columbus automatic, and was adjusting the regulator because it's so fast. Unfortunately, I was turning the regulator and the watch suddenly stopped...
  16. Vintage & Pocket watches
    Awhile back I bought an old 1870's elgin keywind from an antique store. i had it running for a few months, but one day the mainspring broke (i was not winding it to hard or anything, it was probably just too old). Well, my dilemma is that I have no clue what kind of mainspring it uses. at the...
  17. Zenith
    Hello gang, A question has recently presented it self in regards to the modern Zenith El Primero calibers. I had always been under the impression that Zenith made their movements and related components in house, from start to finish. However, I recently discovered that the mainsprings and...
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