BESTFIT Mainspring 313H for Movado 107, MST 450, 451, Oris 400 - Alloy

BESTFIT Mainspring 313H for Movado 107, MST 450, 451, Oris 400 caliber movements and similar ébauche watches, white alloy. See image for precise mainspring specifications. I likely have several of these so the one you get bay differ slightly from the images. 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 satisfactory job of representing the item.