With nickel-finished lever movement 21 jewels the engine-turned silvered dial with Roman numerals on silvered chapter ring blued steel Breguet hands three subsidiary dials indicating day in French with constant seconds month with leap year indication date with 30 minutes register sector for phases of the moon combined with the lunar calendar the circular case with two chronograph buttons in the milled band together with an 18k gold Breguet buckle case dial and movement signed