HR Mainspring #477 for Ebosa Pin Lever & Record caliber 203 - Steel

HR steel mainspring #477 for Record caliber 203 and Ebosa Pin Lever movements, plus perhaps others as well, 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.