Jaeger LeCoultre Geophysic Tribute to 1958 World Timer and Bulova’s cheeky 666 foot

and Bulova’s cheeky 666 foot depth rating into one badass package

The first References of the Day-Date could only be guaranteed to a depth rating of 165 feet

it seems odd that for decades Rolex's only chronograph was powered by a manual-winding movement

Over the years

but when one surfaces on the vintage market

Jaeger LeCoultre Geophysic Tribute to 1958 World Timer and Bulova’s cheeky 666 footThe 1950s were an important time, not only in the world of horology, but in the realms of technology and science as well. During this decade, Eastern and Western scientists united for the International Geophysical Year. Inspired by an upcoming eleven year period of heightened sunspot activity, in 1952 the International Council of Scientific Unions announced the International Geophysical Year, to be held in 1957. In the International Geophysical Year,