The Ulysse Nardin Blast Tourbillon is an avatar of its time and a potent force of nature. This is the first Ulysse skeleton model that features an automatic tourbillon with a tiny, yet powerful platinum micro-rotor that is only visible from the front of the watch. Nested in an x-shaped cage, the tourbillon beats at a frequency of 2.5 Hz, while the movement offers a 72 hour power reserve. Brand: Ulysse Nardin Model: Blast Tourbillon Reference Number: 1723-400-3B/00 Movement: Automatic Case Material: Titanium and Ceramic Case Size: 45 mm Dial: Skeleton Bracelet/Strap: Rubber Gender: Men's/Unisex Watch Warranty: Manufacturer's 5 Year Warranty SKU: 36750 Features: Tourbillon Shop other beautiful pieces in our Ulysse Nardin collection For inquiries on the piece please contact: boutique@shsilver.com