With saphire crystal !
Certainly the Tourbillon is the real eyecatcher in this watch - but what is a Tourbillon ?
This is the explanation - source is copywright Wikipedia:
"In horology, a tourbillon is an addition to the mechanics of a watch escapement. Developed around 1795 by the French-Swiss watchmaker Abraham-Louis Breguet from an earlier idea by the English chronometer maker John Arnold, a tourbillon aims to counter the effects of gravity by mounting the escapement and balance wheel in a rotating cage, to negate the effect of gravity when the timepiece (and thus the escapement) is stuck in a certain position.
Originally an attempt to improve accuracy, tourbillons are still included in some expensive modern watches as a novelty and demonstration of watchmaking virtuosity. The mechanism is usually exposed on the watch's face to show it off."
The Tourbillon is considered to be one of the most complex complication of mechanical watches!
The screwed crystal back offers the view to the skeletized and costly decorated caliber. Very special: at position "9" you have a 24-hour indicator which can be adjusted and used as an individual second time zone !
Limited to only 100 pieces - comes with black leather strap and additional RIOS1931 real Alligator strap ( 9010SENATOR ), you can chose between black, darkblue, bright- and darkbrown. With nice watchbox.
I am happy to have the possibility to offer you this very special watch for watch enthousiasts!