HR Mainspring E472 for Bulova 10BE, A. Michel 420, Tavannes 110, AS 1336, 1361 - Steel

HR Ev-R-Last Mainspring E472 for Bulova 10BE, A. Michel 420, Tavannes 110, AS 1336, 1361 caliber movements plus perhaps other similar ébauche watches, steel, 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 pretty good job of representing the item.