Jaeger-LeCoultre Master Control Q4018421 40 mm Grey Dial

The Master Control Q4018421 keeps its 40 mm stainless-steel round case measured at only 8.78 mm thick. A grey sunburst dial with applied markers gives the restrained time-and-date layout a crisp, quietly layered surface, while the date adds useful information without disturbing the hour, minute and seconds display. The see-through caseback and deployant clasp reinforce the reference's polished character, and 50 metres of water resistance suits its restrained proportions.

Calibre 899 is an in-house automatic movement with a 70-hour power reserve and a single barrel. Its 218 parts include 32 jewels, and the 4 Hz oscillator is paired with a silicon escapement. The movement is visible through the display back and carries a fine finish. Its complication set covers the date, hours, minutes and seconds, while the cased watch undergoes Jaeger-LeCoultre's 1000 Hours Control.