Jager Le Coultre Reverso Duoface Night/Day wristwatch

in 18kt yellow gold, ref. 1763460 - 270.1.54, rectangular case 42x26 mm. one side with silver guilloche dial with Arabic numerals and second counter at 6 o'clock, the other with silver guilloche dial of small 24 hours and the pusher on the side of the crown adjusts the hour hand for a second time zone, sapphire crystals, mechanical movement with manual winding, caliber 854, leather strap with original 18kt yellow gold buckle, signed case, dial and movement, complete with box and guarantee