This sees Jaeger's Reverso, originally one watch, coming in so many variations it's hard to keep count. This year's top model goes by the name Reverso Tribute Gyrotourbillon and is a platinum-cased, limited edition piece with a biaxial flying tourbillon that appears to float in its allotted space.
The front of the watch features a finely grained white round dial with blued steel Dauphine-type hands, a day/night indicator at 11 o'clock, while the seconds are displayed by a disc rotating at the cadence of the tourbillon.
Turning the case over reveals the open‑worked movement with hand-decorated bridges and a black dial for the second time display. There's no mistaking that decades-old Reverso shape, no mistaking the contemporary complexity of the movement, the result interesting rather than introspective or nostalgic.
The same can be said of probably the most sparkling of this year's Audemars Piguet Royal Oaks – the double balance wheel Openworked. As the name suggests, it boasts not only a unique movement with two balance wheels for added timekeeping stability, but everything has been cut away to reveal the machinery in all its glory. It is testament to that 1970s case shape that there's no doubt you're looking at a Royal Oak and not some other compilation of cogs.
Source : http://www.afr.com/brand/luxury/iconic-watches-that-have-stood-the-test-of-time-20160204-gmm503