Marco Mainspring #3249 for AS 1300, Cupilliard 233, Peseux 170 to 176 - Steel

Marco Mainspring #3249 for AS 1300, Cupilliard 233, Peseux 170, 171, 172, 173, 176 caliber movements plus perhaps other ones as well, steel, new in envelope. See images for further details and 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.