Cal. FM nickel-finished lever movement 32 jewels minute repeating on two polished steel hammers onto a gong the engine-turned silvered dial with Arabic numerals an aperture to the lower part exposing the one minute tourbillon carriage depicting Franck Mullers logo FM small fan-shaped power reserve indicator to the upper part in large tonneau-shaped curved case with downturned lugs the curved glazed display back secured by four screws repeating slide in the band platinum Franck Muller buckle case dial and movement signed