Courtesy of Jaeger-LeCoultre In the aftermath of the ephemeral moments within Milan Design Week, three introductions from Jaeger-LeCoultre and lauded industrial designer Marc Newson remain as present as the phenomenon they depict: the passage of time. In the decades-spanning "The Perpetual Timekeeper" exhibition, the "watchmaker of watchmakers" unveiled two new Atmos table clocks--the Atmos…