What I like about this particular complication – powered by the new generation Jaeger-LeCoultre Calibre 939 – is that it provides just enough intricacy while maintaining relative ease-of-use. This is not a world timer, but the movement features a city disc beneath the 6 o’clock marker which is operated via a secondary crown (crown turning operation = easy). There is also the dual-time functionality which is neatly exhibited on a sub-dial just above 6 o’clock which illustrates the second timezone in a conventional hours and minutes configuration, as if it were a mini clock all it’s own. There is a 24-hour day/night indicator, a power reserve meter to reflect the newly enhanced 70-hour power reserve, and a classically exemplified pointer date sub-dial. So much of the watch’s design screams 1960’s Jetset, and that is made possible by the design and orientation of the complication itself. This is high watchmaking, but simplified – a fine movement inside of a sports watch frame. If you couldn’t tell, I am pretty taken by this one and would love to experience it in the metal sometime soon. 

$12,200 (stainless steel) and $23,700 (Le Grand Rose gold); Jaeger-LeCoultre.com.