HR Quick Fit Mainspring K858 for Record 433 19 ligne Movements - Alloy

HR Quick Fit Mainspring K858 for Record caliber 433 19 ligne pocket watch movement, white alloy, new in envelope. See image for precise characteristics and further helpful information. These are often found in older military grade pocket watches and some have suggested even the occasional Swiss Ball. I likely have several of these so the one you get may differ from the images, including some that have no markings. 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.