Jaeger-LeCoultre Reverso Tribute Tourbillon Platinum 3926480

On the front, a radially brushed blue dial with dauphine hands carries local time and the tourbillon. Flip the case in its carrier and the reverse shows a grained, silvery dial with a second, independently set time display meant for home time and a day and night indicator, with most of the movement left open to view. The tourbillon has no upper cage or bridge, so both the tourbillon and the balance are flying, held only from below. The movement is the hand-wound calibre 847, with 38 hours of power reserve. The case measures 27.4 mm wide and 45.5 mm long.

Within the Reverso Tribute line, the Tribute Gyrotourbillon (3946420) is the larger piece in platinum: 31 mm wide, with a skeleton dial and a run of 75. The Reverso Tribute Small Seconds (3978480) shares the 27.4 mm width and a blue dial, but in steel, with a simple small seconds and no limited run.