With nickel-finished jewelled lever movement, the black dial with applied gilt flaming numerals and an image of the Lucifer, gilt pierced hands and pitchfork as the chronograph hand, three engine-turned black subsidiary dials indicating constant seconds, 30 minutes and 12 hours register, aperture for date at 6, in large tonneau-shaped case with black diamond-set stepped bezel and two chronograph buttons in the band, back secured by six screws, screw down crown, together with a stainless steel Corum double deployant clasp, case, dial and movement signed