
Dead
reckoning
From speed, heading, wind and time, a pilot would calculate his position on the map. It is called dead reckoning, and for decades it was the way to cross a sea or a cloud-covered sierra by night. That is why pilots’ watches have large numerals, legible at a glance, and a crown that can be turned with gloves on. The Estima wears the green of the fields passing beneath the wing as the minutes are counted











