BESTFIT Mainspring 95X for Tavannes 719, 758, 769, 777 Pocket Watch - Alloy

BESTFIT Mainspring 95X for Cyma/Tavannes 17 ligne caliber 719, 758, 769, 777 Pocket Watch movements, plus perhaps similar ébauche watches (I believe this would be the 711 & 741), white alloy, new in envelope. See image for precise mainspring specifications. I likely have several of these so the one you get may differ slightly from the images. 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.