Watch Repair Accessory Mainspring Winder Set Brass Watchmaker Repair Tool Parts. The watch is made with an ergonomic handle that is metallic, non slip, easy to grip and convenient to use. It helps improve effeincy. Practical Tools: Watch mainspring winder set is a must for watch maintenance personnel and watch workshops. Watch winder repair tools are perfect for watchmakers. Easy to Use: Watch mainspring winder, a handy tool for watch maintainers, jewelers or amateurs. High quality materials guarantee maximum durability. High End Material: Watch mainspring winder set made of brass for maximum durability. And resistant to damage very practical. Easy to Carry: With storage box, easy to find different models, easy to save and carry, a whole set of take out to use is also very simple and fast. Item Type: Watch Winder. Storage Box Material: Bamboo. Applicable movement: 2000, 2671, 2235, 8200, 8500-1, 8500-2, 3135/2824, C07111, 7750, 2892/2836.