SAMSON Mainspring 6049 for Lang 1036, 1136, MST 371, 372, Oris 450 to 453 - Steel

SAMSON Mainspring 6026-Q for Langendorf 1036, 1136, MST 371, 372, A. Michel 330, 331, 332, 334, 345, Oris 450, 451, 452, 453 & Reconvilier 120 caliber 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.