HR Quick Fit Mainspring KA12 for Omega 330, 331-333, 340-344, 350-355 - Alloy

HR Quick Fit Mainspring KA12 for Omega caliber 330, 28.10, 331, 332, 333, 340, 341, 342, 343, 344, 350, 351, 352, 353, 354, 355 automatic movements with attached bridle, white alloy, new in frail envelope.  See image for precise mainspring specifications and further helpful information. 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.