====== 1959 ====== * Hans and Erwin Kurtz develop the pioneering concept DS (Double Security) at [[Certina]], in which the movement is included in a kind of highly robust safe. As a result of this wristwatches with [[self-winding]] movements can for the first time resist a free fall from 1.8 to 2.2 meters on hard ground. * [[Mido]] introduces the revolutionary one-shell-case with the [[Mido Ocean Star|Star Ocean]]. Hereby the current problems of the case to be [[waterproof]] can be eliminated. * [[Piaget]] introduces their [[micro-rotor]] [[Piaget 12P|12P]], the thinnest [[automatic]] movement in the world at just 2.33 mm. <- [[1958]] | [[1960]] -> {{tag>Year}}