Ronda Mainspring No. 466 for Tavannes 162, 163, 166, 167, 412 to 419 - Alloy

Ronda No. 466 Ronda-Flex Alloy mainspring for Cyma / Tavannes 162, 163, 166, 167, 412, 413, 414, 415, 416, 417, 418, 419 caliber movements and perhaps others, 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 pretty good job of representing the item.