Swiss ETA C01.211 self-winding spring click watch part, precision disassembled component for repairs.

Swiss Self-winding Movement Spring Spare Parts for Classic Watches

Swiss ETA C01.211 self-winding spring click watch part, precision disassembled component for repairs.
This spring is designed for the ETA C01.211 automatic winding mechanism, also known as the 'click' spring. Part number is 126216/12-830. Above is an image provided by the seller.
Swiss ETA C01.211 self-winding spring click watch part, precision disassembled component for repairs.
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