NEWALL Mainspring #1610N for Bulova 5AB, 8EN, Benrus AE, Peseux 140, Hamilton 761, 780 - Alloy

NEWALL Mainspring #1610N for Bulova 5AB, 8EN, Benrus AE, Peseux 140, Hamilton 761, 780, and a whole bunch of AS calibers (976, 969, 1012, 475), plus perhaps other similar ébauche watches, GR Ref 3562, new in envelope. See images for precise mainspring specifications and supported calibers. I likely have several of these so the one you get 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.