cal. 2385 automatic winding movement • gray and black guilloché dial applied Arabic numerals 3 subsidiary dials for constant seconds 30-minute and 12-hour registers aperture for date • titanium Royal Oak case and bezel secured by 8 screws screw down crown and chronograph buttons solid case back secured by 8 screws • case dial and movement signed • with a titanium Audemars Piguet bracelet and steel folding clasp