Sandsteel Sandalloy Mainspring S3246 for Felsa 146, 155, 171, Omega 19.4T2 - Alloy

Sandsteel Sandalloy Mainspring No. S3246 for Buren 35, 373, Cortebert 408, Cyma 52, Derby 60, Felsa 146, 155, 171, Omega 19.4T2 caliber movements, alloy, new in envelope. See images for precise mainspring specifications. I specialize is 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.