Before its new life as this remarkable wristwatch, the Esmeralda Tourbillon was a pocket chronometer, referred to as the Tourbillon under Three Gold Bridges. The very one that claimed a Gold Medal at the 1889 Universal Exposition in Paris. A milestone in the history of Girard-Perregaux, the Tourbillon under Three Gold Bridges is interpreted here with complete respect for the historic watch. The arrow-head bridges supporting the barrel, geartrain and large (14.30-mm diameter) tourbillon have been decorated by hand with mirror polishing, bevelled edges and straight-grained flanks. Each detail confirms the noble origins of this prestigious timepiece. The movement's rotor is mounted co-axially with the mainspring barrel to provide a more than comfortable 60-hour power reserve.