| Mainsprings for Swiss Watches |
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| Generic Swiss mainsprings are $3.00 each for any size that I have in stock. Specify width, strength, length and end style when ordering. |
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| Factory mainsprings for brands such as Bulova, Longines, Gruen, and Wittnauer are $5.00 each for any size that I have in stock. Specify brand and model number when ordering. |
Dennison to Metric Conversion for Width and Strength
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