BESTFIT Mainspring 514K for Seiko 1920A, Venus, Venus Special - Alloy

BESTFIT Mainspring 514K for Seiko caliber 1920A, Venus and Venus Special movements plus perhaps similar 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.