Marco Mainspring #3047 for Bulova 7AT, MST 288, Movado 780, Tavannes 354 - Steel

Marco No. 3047 steel mainspring for Bulova 7AT, MST 288, Movado 780, Tavannes 354, Felsa 171, General 105, 106 and older movements such as 7¾ ligne Gotham and 7¾ ligne Ollendorf and perhaps even others as well, 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.