An absolutely exclusive design, this front-and-back chronometer with tourbillon and 42-hour power reserve comes with an official rating certificate issued by the Swiss Official Chronometer Testing Authority (C.O.S.C.). The movement is built, elaborately decorated, assembled and regulated in Daniel Roth’s own workshop. Front : hours, minutes and seconds. Back : calendar and power-reserve indicator. Made in 18K gold or 950 platinum exclusively, its case features a pressure-fitted back, a gold crown and a sapphire crystal. Its solid gold dial, hand decorated on the rose engine and fitted with blued steel hands, is individually numbered, as is the movement itself. Mississippi alligator strap fitted with an 18K gold or 950 platinum tang-type buckle.