NuREZISTA Mainspring #2003D for RS-430 8-Day Alarm Movement - Steel

NuREZISTA steel mainspring #2003D for RS-430 8-day Alarm movements and perhaps others, new in envelope. These are for movements designed to run for 8 days, which include primarily car and travel clock movements. See images for precise mainspring specifications. 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 pretty good job of representing the item.