Ulysse Nardin Marine Chronometer Annual Calendar 43mm Men’s Watch

43mm polished stainless steel case. Fixed bezel ring with a slightly tapered coined edge finish. Brushed finish crown guard. Crown with ridged rubber ring, for a secure grip. Rubber strap with single brushed finished titanium element featuring the Ulysse Nardin logo engraved. Blue Grand Feu enameled dial with a fine sunburst guilloche pattern. Fine printed Arabic Numeral hour markers. Raised inner bezel flange with a fine printed minute track and triangle luminous hour markers. Polished steel hands with luminous tips. Small seconds sub-dial located at the 6 o’clock position. Power reserve indicator sub-dial located at the 12 o’clock position. The Annual Calendar complication will accurately account for the current number of of days in each month with the exception of the 29th day of February in a leap year. Date window located at the 6 o’clock position. Month displayed at the center of the 6 o’clock sub-dial. The short hand points to the current month.
Ulysse Nardin in-house manufactured Caliber UN-113 beats at 28,800 vph, contains 55 jewels, and an approximate power reserve of 60 hours. The movement features a anchor escapement which is produced using DIAMonSIL, Ulysse Nardin’s revolutionary alliance of diamond and silicon. DIAMonSIL is silicon treated with a thin layer of diamond coating that not only eliminates the need for lubrication, but also significantly increases the part’s durability. Ulysse Nardin’s patented silicon hairspring and in-housed produced oscillator with 4 correction screws. Rotor features 2 anchors as part of the rotor design and a blue medallion made of DIAMonSIL with the UN logo.