I just love how they did.
1) Omega De Ville Hour Vision Orbis
The middle case is made of sapphire allowing us to see the internals of the 8500 case.
2) Omega Planet Ocean Chronograph.
The challenge was how to house a 9300 chronograph movement maintaining an amazing water resistance.
The designer was able to produce a watch, that's bold and heavy but is amazing comfortable on the wrist.
3) Longines twin barrel Lindbergh.
The movement, with two power barrels is outstanding in terms of accuracy, that was the main goal of this design.
Memorable movement, very nice case and crown design.
Disclaimer: It now belongs to my wife, that just is passionate about it.
A wonderful weekend to all,
Nilo