HR Nivastar Mainspring G618 for Precimax caliber 250 - Alloy

HR Nivastar Mainspring No. G618 for Precimax caliber 250 (& 260) plus perhaps similar ébauche 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 suitable job of representing the item.