Marco Marshalloy Mainspring 4251M for Junghans caliber 92, 93, 93/1 - Alloy

Marco Marshalloy Mainspring 4251M for Junghans caliber 92, 93, 93/1 movements and a wide array of dollar watches that used these movements, Westclox B6 & Sabre, Ingraham 687, 693, and perhaps others as well, white alloy, new in 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 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.