Self-winding mechanical movement, Jaeger-LeCoultre Caliber 772 with a 40-hour power reserve, 36 jewels, and 28,800 vibrations per hour. Functions: Hours, deadbeat seconds, and world time. The refined "deadbeat seconds" complication in mechanical watchmaking allows the seconds hand to advance with a sharp jump for each elapsed second, similar to quartz movements. Another interesting feature of this mechanism is the Gyrolab, a rounded "H"-shaped balance wheel on the side arms, which increases the quality of the oscillations and the overall efficiency of the caliber. This innovation is being introduced for the first time in series production.

Steel case, 41.6 mm in diameter, 11.84 mm thick, round, with a polished and satin finish.

Dial with engraved continents and oceans exposed on blue lacquer and world time display. The 24 time zones are displayed simultaneously on the dial, indicated by the names of cities and inscribed on a rotating disc controlled by the watch crown. Sapphire crystal.

Steel case back with screw-down closure and visible movement protected by sapphire crystal.

Original Jaeger-LeCoultre blue alligator strap with original steel folding clasp.