WATCH-CRAFT Mainspring 3064W for Buren 536, 540, General 110, ETA 1070 - Alloy

WATCH-CRAFT Mainspring 3064W for Buren 536 - 540, General 110, ETA 1070, 1170 caliber movements, and perhaps others, alloy, new in envelope. See images for precise mainspring specifications. I specialize in hard to find watch parts so I usually have whatever you might need and all watch parts are unconditionally guaranteed. Images do a pretty good job of representing the item.