Chronomaster Aviator Sea Driver

The Nivada Grenchen Chronomaster

A watch for all time.

Born in 1961 the Chronomaster Aviator Sea Diver is a precision instrument of universal measure.

Its possibilities in use are multiple and astonishing. Sport, industry, science and professional instruction are only some of the fields where the Chronomaster has proven itself to be a valued auxiliary.

Just telling time isn’t enough. Not for someone who takes time seriously. He has to measure it, too. And the Chronomaster performs every timing function known to man.

It’s a stop watch for athletes, doctors, photographers. Solves time-zone riddles for travelers.

Calculate speed. Even gives yachtsman the 5 minutes warning signal.

The black dial contains a 30 minutes recording subdial with a 10-0 minute count down zone (marked in red or orange) for yacht racing. There is also a tachy average speed scale, and clear luminous hands and markers. The rotating scale is 0-60 minutes for elapsed time, and the secondary scale 0-12 hours for hour recording or setting two separate world time zones.