This vintage watchmakers mainspring winder, made by the brand P, is a specialized tool used for winding and setting the mainspring of watches. It is a reliable tool for horologists and watch enthusiasts looking to repair and maintain their timepieces. The Federwinder design allows for precision and efficiency in winding the mainspring, making it a valuable addition to any workshop or tool collection. Looks in good condition that's just my opinion does show vintage wear. It winds .
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