I have to admit that I have very little knowledge and information about these pre-war Chronos, which makes me shy away from purchases at this time. Looking great, congrats to that catch. CC
Well it is 35 mm , porcelain dial ,Hand wound the movement is of high quality steel, the case is of stainless steel . Both movement and case are stampend The crown is not original . It still works but not accurate . I bought it 15 years ago on antique mar...
Valjoux 71 is the closest I have in my library. But I don't have many chronograph movement specifications. Let's some of the experts can help here! Best Blomman