Ball Watches has been manufacturing overbuilt tool watches since 1891, ... sounds like a shit-ton of newtons (a black rubber strap with pin buckle is also available). The COSC-certified automatic ...

This is considered safer to wear than a regular Ardillon buckle, because if the buckle opens, the watch is still attached to the wrist. This was invented by Louis Cartier in the early 20th century.

Roland Iten introduces the diamond-dripped Calibre R822 Predator, which also happens to be the most sophisticated and expensive belt buckle in world.