What is slide rule watch?
The slide rule bezel is basically two matching logarithmic scales — one stationary and one on a rotating outer ring. You perform multiplication and division by rotating the outer ring.
How does the Breitling slide rule work?
A slide-rule bezel can look pretty intimidating at first. It contains two logarithmic scales, an inner one and an outer one. The outer scale rotates bi-directionally, and the inner scale is fixed. Together, they can help the wearer perform a variety of mathematical calculations.
What does Navitimer mean?
The Navitimer (the name is an assemblage of “navigation” and “timer”) was not the first slide rule watch. That honor belongs to Breitling’s Chronomat, released in 1942. The Chronomat was a worthy forerunner to the Navitimer, and the uninitiated can perhaps be forgiven for believing it’s an early version.
Why is it called an e6b?
The E-6B was developed in the United States by Naval Lt. Philip Dalton (1903–1941) in the late 1930s. The name comes from its original part number for the U.S Army Air Corps, before its reorganization in June 1941.
Who invented slide rule?
William Oughtred
The first actual slide rule was created by William Oughtred, a Church of England Rector, Fellow of Kings College Cambridge, teacher of mathematics and a contemporary and correspondent of Edmund Gunter. He simply took two Gunter rules and slid them alongside each other, eliminating the need for dividers.
What was the first Breitling watch ever to feature a circular slide rule?
Revealed to the world in 1942, the Chronomat was the first wristwatch to integrate the brand’s patent number 217012, which granted protection for a rotating bezel containing a slide rule – a feature that would later inspire the Navitimer, the manufacturer’s best known pilot’s watch, and one of the most iconic …
What is Breitling known for?
Breitling SA (German pronunciation: [ˈbraɪtlɪŋ]) is a Swiss luxury watchmaker based in Grenchen, Switzerland. The company was founded in 1884 by Léon Breitling in Saint-Imier, Switzerland. Breitling is known for precision-made chronometers designed for aviators.