Carrying on from the marine chronometers that forged Ulysse Nardin's reputation, the brand presents the Marine Annual Calendar Chronometer with a Grand Feu enamel dial. True to the manufacture's tradition, this timepiece blends technical innovation and Simplicity of use, with an annual calendar that requires a single adjustment a year, in February. The movement, which provides 60 hours of power reserve, has been entirely designed and produced in-house.