Marco Mainspring #3045 for Bulova 17P, 17AP, 17AH, ETA 953 movements - Steel

Marco steel mainspring #3045 for Bulova 17 ligne model 17P and 17AP (ébauche is Le Phare 17 L.) 17AH, Gruen 716, 717,975, 976, ETA 53 caliber movements. See images for precise mainspring specifications. I likely have several of these so the one you gat may differ slightly from the images. 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.