Cal. 2385 nickel-finished lever movement 37 jewels engine-turned silvered dial large applied mirrored pink gold Arabic numerals on blank chapter ring three sunk subsidiary dials for 12 hours and 30 minutes registers constant seconds eccentric window for date large rectangular case curved fluted sides back secured by four screws two oval chronograph buttons in the band 18K pink gold Audemars Piguet deployant clasp forming the letters AP case dial and movement signed