WATCH-CRAFT Mainspring 2738W for Kurth 25-451, GSW 23.7 - Alloy

WATCH-CRAFT alloy mainspring 2738W for Kurth caliber 25-451, Geneva Sports Watch Chronograph caliber 23.7 caliber movements, plus similar ébauche watches including numerous Kurth 24-451 based watches (Hamilton 662, 690) 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.