Cvstos Challenge

A LIMITED EDITION BLACKENED STAINLESS STEEL TONNEAU-FORM SEMI-SKELETONIZED AUTOMATIC CHRONOGRAPH WRISTWATCH WITH REGISTERS, POWER RESERVE INDICATION AND DATE NO 040/100-00 CHALLENGE GRAND PRIX CIRCA 2007 STAINLESS STEEL, AUTOMATIC dimensions 45 x 55.5 mm , • cal. 577 automatic movement, 25 jewels, palladium and titanium rotor • semi-skeletonized dial, outer minutes track with applied baton indexes, tachometer scale to the periphery, luminous hands, 3 subsidiary dials for 30-minute and 12-hour registers and constant seconds, fan-form sector for power reserve indicator • blackened stainless steel tonneau-form case, sapphire crystal display back secured by 4 screws • case, dial and movement signed • with a blackened stainless steel Cvstos folding clasp