HR Mainspring SA715 for Waltham 16s Factory No. 2247 / 2268 - Alloy

HR Mainspring SA715 for 16s Waltham Factory No. 2247 / 2268, alloy, new in envelope. See images for precise mainspring specifications. I likely have several of these so the one you get may differ slightly than what is shown in the images. I specialize in hard to find watch parts and all watch parts are unconditionally guaranteed. Images do an adequate good job of representing the item.