Ulysse Nardin Blast Sparkling Rainbow

The Ulysse Nardin Blast Sparkling Rainbow, reference 1720-400B1LE-9A-RAIN/3A, has a 45 mm white gold case, a flying tourbillon and a rubber strap. Measuring 13.35 mm thick, the case carries a water-resistance rating of 50 metres. The openworked dial displays hours and minutes beneath a sapphire crystal. The bezel is set with sapphires. The watch is a limited edition of 8 pieces. A platinum micro-rotor is visible from the front at 12 o'clock. Self-winding calibre UN-172 operates at 18,000 vibrations per hour with a power reserve of 72 hours, a silicon escapement and 25 jewels.