Cal. SF210 is a hand-winding monopusher or 2-pusher movement produced by Stoltz Frères (Angelus) in the 1930s. It was introduced around 1935, replacing the company’s earlier Cal. SF15, to which it is closely related.
Angelus SF210

Cal. SF210 is a hand-winding monopusher or 2-pusher movement produced by Stoltz Frères (Angelus) in the 1930s. It was introduced around 1935, replacing the company’s earlier Cal. SF15, to which it is closely related.