"1.370 x 24TPI" is English. Although English threaded BBs are a modern standard, they certainly aren't modern. In the past, every contry had its own standard thread. The Japanese adoption of English threading helped make it a defacto standard. Nevertheless, Campy persists with Italian threading (36 mm X 24 tpi). So, you likely have English threads in your BB shell (frame), but a Campy BB with ISO square taper spindle. The current spindle will only fit cranks that fit ISO, e.g., Campy, Miche, but not Shimano, Sugino, etc.