Ulysse Nardin Blast
Movement : Caliber UN-172 , skeletonized automatic tourbillon with micro-rotor .
Functions : Tourbillon , hours , minutes , raised rectangular bridge , escapement wheel , anchor , and balance spring in silicon , platinum micro-rotor at 12 o ’ clock , 18,000 vph ( 2.5 Hz ). Power reserve is 72 hours .
The lug surfaces are polished by laser using a new technique devised by Ulysse Nardin .
Case : 45mm x 13mm titanium or titanium / ceramic multi-part with PVD / DLC coating ; rose gold and ceramic for rose gold model , sapphire case back , sapphire crystal , water resistance to 50 meters .
Strap : Structured or plain rubber , alligator or calfskin , velvet or denim .
WINTER 2021 | INTERNATIONAL WATCH | 51