Santos-Dumont watch, large model, mechanical movement with automatic winding caliber 1847 Mc. Steel case, Bezel in 18k yellow gold (750/1000) ,7-sided crown set with a faceted synthetic blue spinel, anthracite gray dial with satin-finish gradation, sword-shaped hands in polished gold-plated steel, sapphire crystal, steel bracelet with “SmartLink” adjustment, second strap in gray alligator leather with interchangeable steel folding buckle , both bracelets are fitted with the “QuickSwitch” interchangeability system. Case dimensions: 39.8 mm, thickness: 9.38 mm. Water-resistant up to 10 bar (approx. 100 meters/100 feet).