The Richard Mille Chronograph NTPT is an automatic flyback chronograph, a design of advanced horological engineering from the maison. This timepiece wears as a definitive statement of technical mastery. It is suited for an discerning collector's wrist. The robust construction and material selection ensure its place in both formal and sporting contexts. Key details Brand: Richard Mille Type: Automatic Chronograph Caliber: RMAC4 Case Material: Carbon Diameter: 49.9 mm Water Resistance: 5 ATM Crystal: Sapphire crystal Dial: Skeletonized Bracelet: Rubber