Balance springs

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Quick Learner from Deland, Fl

Oct 14, 2020 11:44 am

Unfortunately both springs came loose from window. There is a part number on the channel section, 2430Y

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Quick Learner from Deland, Fl

Oct 15, 2020 6:54 pm

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Additional photos and measurements

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Casey from SWISCO

Oct 16, 2020 2:21 pm

Hello,

It looks like you have either our S351-25, with a 15-002 bottom attachment, or S390-25, with a 15-001 bottom attachment. Take a look at the image below to determine which balance you'll need. You'll also need a 2430 spring strength option for your replacement balances. Thank you!

Comparison of the S351 and S390 balance shoes.