cal. 576 automatic nickel lever movement 37 jewels mono-metallic balance • silvered guilloché dial black painted Roman numerals blued steel Breguet hands 3 subsidiary dials for constant seconds 30-minute and 12-hour registers aperture for date • 18k yellow gold case coin-edged band case back secured by 6 screws • case dial and movement signed • with 18k yellow gold Breguet folding clasp