Tourbillon Souveraine by FP Journe part2

Its mechanism uses the remontoir or constant force device system, which the brand values since 1983 for its timekeeping performances, and has now been enriched with an independent seconds system. This complication, representing a unique feature on a contemporary wristwatch, provides a more accurate read-off of time. The French term for "independent seconds", called "seconde morte" or "dead-beat seconds", stems from the fact that the hand remains motionless ("dead") for as long as the second has not actually elapsed, which means the hand thus indicates the second once it has actually gone past. This exceptional mechanism is housed in an equally noble 38 or 40 mm case in 18-carat red gold.

The beauty and sophistication of this technical and aesthetic feat are revealed through the transparent sapphire crystal case-back. The dial features the distinctive identity of the F.P. Journe chronometers with the 18- carat red or white gold dial and guilloché silver hour, minute and seconds circles screwed to the watch face (a patented feature).

The 42-hour power-reserve indication at 12 o'clock perfectly counter-balances the independent seconds display at 6 o'clock. Case in platinum or red gold. Leather strap with platinum or red gold pin buckle, or platinum or red gold bracelet with folding clasp.