LeCoultre Factory mainspring for caliber 490 - Alloy

LeCoultre Factory Mainspring for 9 ligne caliber 490, alloy, new in package. See images for further details. The wonderful thing about factory mainsprings is they always fit. 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 suitable job of representing the item.