Marco Mainspring 5001 for Bulova 9AB, 10AU, 10AUC, Felsa 700 - Alloy

Marco Mainspring 5001 for Bulova 9AB, 10AU, 10AUC & Felsa 700 caliber automatic movements (with bridle) plus perhaps many similar ébauche watches, 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 suitable job of representing the item.