Marco Mainspring #3353 for 18L Kurth Caliber 262 & 263 Pocket Watch - Steel

Marco Mainspring No. 3353 for Kurth 18 ligne caliber 262 & 263 Pocket Watch, steel, new in envelope. See image for precise characteristics. I specialize in hard to find watch parts and all watch parts are unconditionally guaranteed. Images do a pretty good job of representing the item.