HR Quick Fit Mainspring K923 for LeCoultre caliber 5L, 460B, 90L, 90LN - Alloy

HR Quick Fit Mainspring K923 for LeCoultre 5L, 460B, 90L, 90LN caliber movements plus perhaps similar ébauche watches, white alloy, new in envelope. See images for precise mainspring specifications.  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.