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Unita 235 click spring?

Len33

By Len33
in Watch Repairs Help & Advice

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Len33 WRT Addict

Len33

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I need a click spring for a Unitas 235 pocket watch.

Nobody (That I have tried) has been able to heip and, in order to make one, the spring has to be

about 0.1 mm thick and no more, because it passes under the winding wheel.

The click springs that I have are too short to re shape.

Any ideas where............?

Thanks.

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Tmuir Distinguished Member

Tmuir

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Are you sure your dimension is correct?

I have a 235 apart at the moment and just measured the click spring and it was 0.21mm.

You can buy electric guitar strings down to 0.007 inches, but 0.008 inches should do you at 0.203mm

https://www.stringsdirect.co.uk/strings-c1/single-strings-c810/electric-guitar-c534/daddario-high-carbon-plain-steel-single-string-008-p6466

You can buy plain steel and high carbon steel, I'm guessing the high carbon steel ones would be better to make the spring from, but I stand to be corrected.

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Len33 WRT Addict

Len33

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15 hours ago, Tmuir said:

Are you sure your dimension is correct?

I have a 235 apart at the moment and just measured the click spring and it was 0.21mm.

You can buy electric guitar strings down to 0.007 inches, but 0.008 inches should do you at 0.203mm

https://www.stringsdirect.co.uk/strings-c1/single-strings-c810/electric-guitar-c534/daddario-high-carbon-plain-steel-single-string-008-p6466

You can buy plain steel and high carbon steel, I'm guessing the high carbon steel ones would be better to make the spring from, but I stand to be corrected.

Thanksfor your suggestions.

I do have some of Cousins 'Shepherds hook' springs, but they are too short.

As obtaining a spring wire suitable for the watch is proving to be quite difficult, the guitar string idea seems to be the way to go with this.

Incidentally, at 0.1mm thick, maybe that is the reason for this click spring breaking in the first place.

Anyway, "thank you," both.

 

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