Ulysse Nardin Blast Sparkling Rainbow

Ulysse Nardin's Blast Sparkling Rainbow, reference 1720-400B1LE-9A-RAIN/3A, comes in an 18 ct white gold case measuring 45 mm across. The case stands 13.35 mm thick and is set with a sapphire crystal. This is a limited edition of eight pieces, built on the Blast's angular case architecture. Inside, the self-winding calibre UN-172 runs with a flying tourbillon and a silicon escapement, delivering 72 hours of power reserve. The dial shows hours and minutes only, leaving the tourbillon to do the talking. A rubber strap completes the piece. Ulysse Nardin rates the case to 50 metres of water resistance.