BOREL Mainspring A5020-T for Rolex NA (Ref. 620 / 630) - Alloy

BOREL Mainspring A5020-T for Rolex size NA Ref 620 / 630 movements plus perhaps similar ébauche watches, white alloy. See images for precise mainspring specifications. 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.