NEWALL Mainspring #1617N for Tissot 17.5, AS 1023, Kurth 275, Bulova 9AS - Alloy

NEWALL N-DUR-ALL alloy mainspring #1617N for Tissot 17.5, AS 1023, Kurth 275, Bulova 9AS, General 90A caliber movements, new in frail or even torn 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 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.