Ulysse Nardin Marine Torpilleur Military

The Ulysse Nardin Marine Torpilleur Military, reference 1183-320LE/40, has a 44 mm steel case and a textile strap. Rated for water resistance to 50 metres, the case has a sapphire crystal over the display. The white dial has small seconds and a power reserve indicator. The watch is a limited edition of 173 pieces. The hands follow the design of those used on early on-board marine timepieces. Self-winding calibre UN-118 has a power reserve of 60 hours, a DIAMonSIL escapement and 50 jewels and runs at 28,800 vibrations per hour.