The newly revived Swiss watch brand Edouard Koehn is now being distributed in North America by the New Jersey-based Totally Worth It, which also distributes Ressence, Trilobe, Scatola del Tempo and Swiss Kubik.
Named for master watchmaker Edouard Koehn, who in 1891 developed his eponymous watch brand in Geneva after decades at Patek Philippe, the new Edouard Koehn Master Watchmaker Manufacture is based in La Chaux-de-Fonds and offers three watch collections: Tempus I, Tempus II and World Heritage.
The Chronographs
The two Tempus collections feature contemporary automatic chronographs with movements developed by Edouard Koehn in collaboration with famed Swiss movement maker Concepto. Tempus I is a sporty tri-compax chronograph in a PVD blackened steel case with a black ceramic bezel, offered in four dial colors and two skeleton versions.
Tempus II is a Bi-Compax mono-pusher chronograph, and is much more ambitious, with a technical design that exposes an inverted escapement at the top of each dial. 
This “Open Heart” design, also framed by a black ceramic bezel, displays chronograph time via a central seconds hand and a large thirty-minutes chronograph subdial at the 3 o’clock position. Four dial colors are available.
Prices: $7,950 (Tempus I) and $9,950 (Tempus II)
World Heritage
As the most traditional series in the Edouard Koehn collection, the World Heritage model is nonetheless technically challenging. The watch, built using a Concepto base caliber modified for Edouard Koehn, includes an alarm function, combining two complications highly useful to travelers. 
While the world time function allows the wearer to see the world time in any of twenty-four time zones, the alarm function allows the wearer to set an alert that, for instance, might note an upcoming flight time. The double barrel EK-MVTWTA01 caliber simultaneously winds the watch and the alarm functions.
Edouard Koehn offers these World Heritage models as limited editions, with each of five dial options available in editions of eighty-eight pieces. 
At 42mm in diameter, these World Heritage models are somewhat smaller than the chronographs. They are lighter too, cased in titanium rather than steel. All told, this makes for a lightweight watch with heavyweight technical functions.
Price: $8,950.