The Hublot Big Bang Unico Titanium Rainbow watch is powered by an automatic movement. The 42mm titanium case is set with 170 colored gemstones including rubies, pink sapphires, amethsyts, blue sapphires, blue topaz, tsavorites, yellow sapphires, and orange sapphires. The bezel is set with an additional 48 baguette cut colored gemstones. The matte black skeleton dial showcases a chronograph function, flyback, and a date window. It is protected by a sapphire crystal. The watch comes with a black rubber strap and a rainbow leather strap. Both are secured by a titanium deployant buckle. Water resistant to 100 meters.