====== 1952 ====== * [[Breitling]] launches the aviator [[chronograph]] "[[Breitling Navitimer|Navitimer]]" with slide rule, which becomes one of the great success models of the brand. * [[Rolex]] introduces the [[Rolex Oyster Date|Oysterdate]] at the [[Basel Fair]]. * [[Citizen]] creates the first Japanese watch with a calendar in March. <- [[1951]] | [[1953]] -> {{tag>Year}}