Beco Loop Clock Mainspring - 19/64" x .015" x 39" Long - CML 77.266

Beco Technic Clock Mainspring, LOOP End – 19/64″ Width, .015″ Strength/Thickness, 39″ Length, P/N CML 77.266 (MS266), steel, new in package. See images for precise mainspring specifications. I specialize in hard to find watch & clock parts and all parts are unconditionally guaranteed. Images do an adequate job of representing the item.