Idle Gear Hairspring Spring for Olympus OM1, OM1N, OM2, OM2N Film Camera
£7.50
Fits Olympus OM1, OM1N, OM2, OM2N, OM10, OM20. Might fit other models, don't have any on hand to check. Original Olympus spring. Excellent condition. Either way, no problem. The spring pictured is an example.
