Founded in Le Sentier in the Vallée de Joux in 1833, Jaeger-LeCoultre is among the most technically accomplished manufactures in Switzerland — a brand that designs and produces its own movements, tools and even the machine components used to build them. The Reverso, created in 1931 for British polo players in India who needed a watch that could survive a match, has grown into one of the most iconic and architecturally distinctive designs in watchmaking history. The Tribute Duoface Calendar is the most complicated expression of the current Reverso Tribute line, combining a full calendar and dual time zone within the watch's legendary reversible rectangular case.

Reference Q3918420 is a 49.4 x 29.9 mm stainless steel manual-winding watch, just 10.9 mm in thickness, with the signature Art Deco gadroons and a swivel mechanism that exposes two entirely distinct dials. The front dial is silvered grey grained, carrying applied Dauphine hands and stick hour markers alongside a complete calendar: day, date, month and moon phase, all instantly readable at a glance. The reverse side reveals a deep blue sunray dial displaying a second time zone with a day/night indicator at six o'clock — a resolutely contemporary contrast to the classical front. At its heart beats the Jaeger-LeCoultre Manufacture Calibre 853, a manual-winding movement comprising 223 components and 19 jewels, running at 21,600 vph with a 42-hour power reserve. The sapphire crystal carries anti-reflective treatment on both dials. Water resistance is rated to 30 metres. The watch is presented on a brown leather strap designed by the renowned Argentinian bootmaker Casa Fagliano.

This Jaeger-LeCoultre Reverso Tribute Duoface Calendar is in near mint condition and comes as a full set.