What year did Britain's Royal Flying Corps choose watches made by the company who later made the Electroquartz as their official timekeepers?
Omega Electroquartz: The Omega Electroquartz was introduced in 1969 as the first production Swiss quartz watch. Omega Electroquartz:  It was the collaboration of 20 Swiss watch companies and the movement was utilised by Rolex, Patek Phillipe and Omega SA amongst others. Omega SA: Omega SA ( ; ) is a Swiss luxury watchmaker based in Biel/Bienne, Switzerland. Omega SA:  Britain's Royal Flying Corps chose Omega watches in 1917 as its official timekeepers for its combat units, as did the American army in 1918.
1917