Sandsteel Sandalloy Mainspring S2217 for Font 1146, Bulova 8AN, Gruen 723 - Alloy

Sandsteel Sandalloy Mainspring S2217 for Font caliber 1146, Bulova caliber 8AN, and Gruen 723 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 an adequate job of representing the item.