BESTFIT Mainspring 713H for Felsa 64, 298 & Fleurier 370 - Alloy

BESTFIT Mainspring 713H for Felsa calibers 64 & 289, Fleurier caliber 370 and is suitable for ETA caliber 2340 plus perhaps similar ébauche watches, white alloy, new in frail envelope. See image for precise characteristics. I have several of these and the envelopes look slightly different but they are all the same mainspring. I specialize is 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.