The LONGINES SPIRIT ZULU TIME embodies the brand's century-old expertise in multiple time-zone watches. Introduced to the collection last year, the 39 mm model is now supplemented by a new version in Grade 5 titanium, an alloy that is extremely robust yet lightweight. This authentic tool-watch offers cutting-edge precision thanks to its exclusive Longines GMT calibre certified as a chronometer by the COSC (Contrôle Officiel Suisse des Chronomètres).