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  • How to source a hairspring for a Waltham pocket - NAWCC Forums
    Finding a replacement hairspring that will be perfect in every way will be difficult You may have to go with a balance complete from a donor watch Estheticly, that process is flawed since most American watches had the movement serial number scribed under the balance arms But if it is possible to do, it might get the watch running for you
  • Balance cock, hairspring, regulator and balance - NAWCC Forums
    If the hairspring is significantly outside the gap, or resists going into the gap, it needs work, and I curse my rotten luck!!! Lately I've taken to putting this all together dry, and putting just the balance and cock on the pillar plate before anything else
  • Vibrating A Hairspring - NAWCC Forums
    This is done to fit a new hairspring to a watch The new spring is attached to the balance and caused to swing back and forth as it is compared with another balance of known correctness They should swing the same number of times, or vibrations and the same degree All of which is an
  • Replacing a hairspring | NAWCC Forums
    I damaged a balance spring on on a 40's Westclox alarm clock, after reassembling the movement After a lot of work trying to correct the spring's shape I decided to buy a spring assortment and try a new one I found the most similar one Attached it to the staff for a friction fit (with some
  • Choosing a new hairspring - NAWCC Forums
    How does one choose the best replacement hairspring for a movement? I'm working on a mini Mauthe time only movement (a novelty style) The mainspring was completely destroyed; all that remained on the balance wheel was the collet and a shred of the old spring I used a copper hairspring from
  • Reattach hairspring to balance cock - NAWCC Forums
    Hey all I’m new to repairs and have a Medana watch with an MST 359 movement and the balance wheel and spring are disconnected from the balance cock Is it a difficult thing to reattach or fairly easy?
  • hairspring collet - NAWCC Forums
    hi, i have a hairspring which matches one which is broken, the trouble is the the collect is to small in diameter to fit the balance staff, what is the best method to enlarge the inside diameter , without removing hair spring, as it looks rubbed in and most likely break or do i turn down the
  • Hairspring Overcoil - NAWCC Forums
    Maintaining a hold on the hairspring lower the balance so the lower pivot rests on the upper end jewel on the running watch so that the balance sits horizontally (The hairspring should still be stretched some) Use an artists paint brush (camel hair is good) to brush the balance into motion Compare the rotations of the two balances
  • American Pocket Watch Hairspring Replacement - NAWCC Forums
    In the olden days, American watch manufacturers sold replacement Hairsprings in different strengths for differently weighted balance wheels What was the technique for finding the correct strength of Hairspring to order? Was there a balance screw to Hairspring strengthen ratio? If so, how many
  • What is a Lossier Terminal Hairspring? | NAWCC Forums
    Re: What is a The Lossier Inner Terminal Hairspring refers to a hairspring shaped like that on the left in this material catalog image It refers to the precisely formed innermost coil of the hairspring before it is pinned to the hairspring collet





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