Long Runtime Hairspring for Larkys Watch Escapement
thingiverse
This Hairspring has an additional Winding. It is less stiff than other springs and makes the watch escapement running slower. You need a smooth running gear train to let it work perfect. If the original spring works for you, then this spring is your first choice when it comes to achieve a prolonged running time. In addition i used this pallet fork. It works better than the original for me. https://www.thingiverse.com/thing:3753245
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