Sandsteel Sandalloy Mainspring S2223 for Felsa 66, 176, 194, Buren 385 - Alloy

Sandsteel Sandalloy Mainspring S2223 for Felsa 66, 176, 194, Buren 385 caliber movements, plus perhaps similar ébauche watches, alloy, new in envelope. See images for precise mainspring specifications. I likely have several of these so the one you get may differ slightly from the images. 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 barely adequate job of representing the item.