Dynaflex Unbreakable Mainspring for Font 175, 176, Benrus AR, AT - Alloy

Dynaflex Unbreakable Mainspring for Font caliber 175, 176 and Benrus caliber AR, AT movements, 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 pretty good job of representing the item.