Ulysse Nardin Blast Free Wheel Maillechort

Ulysse Nardin's Blast Free Wheel Maillechort, reference 1760-401LE-4A-MAIL/3A, comes in an 18 ct white gold case measuring 45 mm across. The case stands 12.4 mm thick and carries a sapphire crystal over a nickel silver dial. Inside is the manual-winding calibre UN-176, a flying tourbillon built around Ulysse Nardin's silicon Ulysse Anchor Constant Escapement, with 170 hours of power reserve shown on its own indicator. Only 50 examples of this piece exist. A velvet rubber strap completes the watch. Water resistance is modest here: the case is rated to 30 metres.