An important step in the St ... the Ultra-Chron Carbon isn’t just a new addition to the fabled high-frequency range—it’s Longines’ first-ever carbon watch. Introducing a new case material ...

In 1968, Longines took the Ultra-Chron concept a step ... carbon fiber strips and epoxy resin The carbon fiber composite provides exceptional structural integrity, making the watch highly ...

The carbon case, which is milled from a solid block, features stripes of French racing blue, as used by Bugatti racing cars from the early 20th century. Various digital watch faces are included ...