“feet first” / “meter first” Subs

Hello Rolex historians,

can someone give us an exact time line of those Sub dials. I was told that "meter first" is from 1966 till early 70s but till what year exactly ? And what about 'feet first' ? In France, where faking is the norm, one finds Subs from 1978 with meter first dials. The vendors are upset when challenged. 😀