Santos-Dumont skeleton watch equipped with a micro-rotor

Santos-Dumont micro-rotor skeleton watch, large model, 31 mm, automatic mechanical movement, caliber 9629 MC. 
18K rose gold (750/1000) case, polished blued-steel sword-shaped hands, sapphire crystal and case back, bridges covered in burgundy lacquer
Burgundy alligator leather strap and brown alligator leather strap, 18K rose gold (750/1000) ardillon buckle. 

Movement dimensions: 23.2 mm. Movement thickness: 4.4 mm Balance: 28,800 vibrations/hour, power reserve approx. 44 hours. 
Case dimensions: 31 mm. Thickness: 8 mm. Water-resistant up to 3 bar (approx. 30 meters/100 feet).