Set of 14 mainspring winders sized to cover popular calibres including ETA 2824, 2836, 7750, 2892 and Rolex 3135.
⭐ At a glance
📦 14 winders in one set, spanning a wide range of mainspring barrel sizes
✅ Covers calibres C0711, 8500-1, 8500-2, 3135, 2235, 7750, 2892, 8200, 2671, 2000, 7120, 2750, 2836, 2824
✔️ New with tags
Material: Aluminium alloy for durability
Handle: Ergonomic, non-slip grip
🔧 What it does & how to use
A mainspring winder is used to safely wind or let down the tension in a watch's mainspring barrel during servicing and repair. Removing a barrel bridge or arbor with a spring still under tension can cause it to spring free suddenly, risking damage to the movement or injury to the user — the winder controls this release in a slow, safe manner.
To use, select the winder from the set that matches the diameter of your barrel or calibre, fit it onto the barrel arbor, then turn to either wind up or gradually release the spring's tension before dismantling. Having 14 sizes in one set means most common calibres are covered without needing to buy tools individually, making this useful for both hobbyist watch repairers and professional watchmakers.
⚠️ Please check that the winder size you select correctly matches your specific movement or barrel before use — using the wrong size can risk slipping or damage to the mainspring or barrel.
