Ulysse Nardin Marine Chronometer 45mm Blue Alligator Men’s Watch 1183-122/43

45mm polished stainless steel case. Fixed bezel ring with a slightly tapered coined edge finish. Brushed finish crown guard. Crown with ridged rubber ring, for an secure grip. Flat blue metallic dial. Applied polished steel rimmed Roman Numeral hour markers. Inner bezel flange with a printed minute track and small luminous hour markers. Polished steel hands with luminous tips. Silver rimmed small seconds sub-dial located at the 6 o’clock position. Silver rimmed power reserve indicator located at the 12 o’clock position. Magnified date window at the 6 o’clock position. Ulysse Nardin in-house manufactured Caliber UN-118 beats at 28,800 vph, contains 50 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 bears 2 anchors and a DIAMonSIL medallion.