WATCH-CRAFT Mainspring 3107W for AS caliber 1203, 1205, 1206, ETA caliber 640 - Alloy

WATCH-CRAFT Mainspring 3107W for AS caliber 1203, 1205, 1206, ETA caliber 640 movements plus perhaps many others, white 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.