Nivada Grenchen F77 The original Nivada Grenchen F77 was released in 1977. Now, 46 years later, the resurrected Nivada has re-issued the F77, staying pretty close to the original in design, but using modern manufacturing and materials. Heavily inspired by the Genta-Design Audemars Piguet Royal Oak, released just 5 years earlier in 1972, Nivada wasn’t shy about copying it. And now here in 202...