Hamilton 917 10s click spring…

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  • #48803
    tmac1956
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    • Topics Started: 171
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    All:

    It looks like I need to make a click spring for a 10s 917 Hamilton pocket watch. What material do I need to use for this and where might I find it? I’m thinking I might be able to use a guitar string of about the 0.08 diameter.

    Thanks!
    Tom

    #55213
    david pierce
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    Tom,
    If it is simply a round spring, AISI 1086 also known as ASTM A228 or music wire would be the best material. This should not be confused with a guitar string which is a wire attached to a musical instrument. It has a hardness range of RC 41-60 and extremely high tinsile strength. For flat springs it looks like blue tempered 1095 would be a good choice.
    david

    #55214
    chris mabbott
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    • Topics Started: 119
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    Hi Tom, welcome to click spring hell, I mean heaven 😆 I’ve had to make a few and had them flying through the air..

    What I have used, and this is so simple that I thought about it by accident, I used some of those snap rings, you can get them in hardware stores in all sizes, it’s good spring steel and you can form it to the shape you want, just don’t get it too hot or it’ll loose its spring properties. I used a dremel and small files to make the ones I needed, the pain was trying to drill the .001mm hole.

    I’ll be curious to hear what others have used..

    Chris

    #55215
    randy
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    • Topics Started: 39
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    If nothing else works Tom..you might find one in this assortment that you could modify

    http://www.jewelerssupplies.com/product4003.html

    #55216
    tmac1956
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    Randy:

    I should be able to make one from these.

    Thanks!
    Tom

    #55217
    randy
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    • Topics Started: 39
    • Total Posts: 594

    You’re welcome Tom…and then you’ll have spares for other watches !

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tmac1956Hamilton 917 10s click spring…