Jaeger-LeCoultre 3788570 Grande Reverso Ultra Thin Duoface 378.85.70, stainless steel case on a strap with a stainless steel tang buckle, manual wind Jaeger Caliber 854/1 movement, white opaline dial with black stick transferred hour markers, running seconds at 6 o'clock, the reverse side features a black velvety clou de Paris guilloche dial with second time zone and day/night indicator, size: 46.8mm x 27mm, thickness: 9.8mm.