The Ulysse Nardin Marine Chronometer Automatic model 1183-310/40 is a luxury timepiece featuring an automatic movement. It boasts a stainless steel case, black alligator leather strap, and a fixed silver-tone bezel with coin edge design. The dial displays Roman numeral hour markers at the 6,9, and 12 o'clock positions, minute markers on its outer rim, Roman numerals for hours marked in blue spadelike hands, date function at the 6 o'clock position, a subdial for minutes up to 60 seconds (likely referred as 'seconds' but labeled differently), power reserve indicator visible from behind or integrated on the dial, and is driven by Ulysse Nardin calibre UN-118 movement based on UN-66. This mechanical marvel includes 50 jewels in its movement with a frequency of 28,800 vph (43,200 bph) ensuring precision timekeeping for approximately 60 hours without needing to wind. The watch is equipped with scratch-resistant sapphire crystal glass, a screw-down crown, transparent case back to view the mechanics, round case shape measuring 42mm in diameter and 11.4mm thick, and offers water resistance suitable for shallow water activities up to 50 meters (165 feet). Additionally, it is part of the Marine Chronometer Series.
