With nickel-finished lever movement 17 jewels the black dial with applied baton numerals three engine-turned silvered subsidiary dials indicating constant seconds 30 minutes and 12 hours registers in tonneau-shaped water-resistant-type case with black bezel calibrated for 200 units per hour screw back screw down crown and two screw down chronograph buttons in the band together with a stainless steel Rolex Oyster bracelet and deployant clasp stamped 2.64 case dial and movement signed Rolex dial inscribed Cartier