Hublot Big Bang Unico Sky Blue Chronograph 411.EX.5120.NR. 45 mm sky blue ceramic case. Blue skeleton dial with 60-minute counter and date aperture at 3 o’clock, seconds sub-dial at 9 o’clock. Automatic Swiss made movement HUB1242, features 38 jewels. Power reserve of 72 hours. White textile strap with folding sky blue ceramic clasp. Blue and white rubber strap.