Bridgestone 175 Dual Twin in Movies

American Pickers EP: 2.07

1966 Bridgestone 175 Dual Twin

Where did the idea it was a BSA come from? Looks like a Japanese bike from the mid '60s. Might be a Bridgestone. or Suzuki ?

Bridgestone 175 Dual Twin as built between 1966 and 1970