72 hairsprings in mixed sizes — a ready-made assortment for servicing and repairing standard alarm clock movements.
⭐ At a glance
📦 72 hairsprings included
📏 Mixed sizes assortment
✅ Fits standard alarm clock movements
✔️ New, unbranded stock
✅ Fits
The hairspring is the fine coiled spring that controls the balance wheel's oscillation in a clock movement, so a worn, kinked or snapped one will stop a clock keeping time. This assortment gives clock repairers and hobbyists a bank of spares in mixed sizes to try against a faulty movement, useful when the original spring is damaged or the exact size isn't known in advance. Suited to standard alarm clock movements.
⚠️ Please check the springs are unlabelled mixed sizes, so you'll need to test-fit against your movement to find the closest match rather than ordering for an exact stated size.
