Harry Winston is renowned for the rare, timeless and the exquisite, and none is truer to those maxims than the new Midnight Monochrome timepiece. Inspired by one of Earth's oldest and purest materials, slate, this sophisticated watch marries natural beauty with technical mastery. This streamline watch features a metallic-grey slate-effect dial with hour and minute functions and a date aperture at six o'clock. Encased in white gold, the timepiece measures 42mm in diameter and is presented on a hand-sewn alligator strap with a white gold ardillon buckle. The Swiss-made automatic self-wind movement Calibre GP 3300 provides a 45-hour power reserve and is water resistant to 30m. With 28,800 vibrations per hour, the intricate movement has elegant Côte de Genève decoration and 27 jewels that are visible through the sapphire crystal case back.