Zenith Grande ChronoMaster XXT Tourbillon

Pièce Unique for the “only watch 2005” charity auction. Thierry Nataf, President of the manufacture and the ZENITH Foundation propose a unique execution of this masterpiece: white gold case, guilloché dial with black rhodied indexes and tourbillon bridge. Caliber El Primero 4005, 319 components in gold and titanium, 35 jewels Automatic chronograph movement with tourbillon 36’000 vibrations per hour 15 1/2``` caliber. Diameter : 35 mm. Height : 7.55 mm Power reserve over 50 hours Measures short time intervals to a 10th of a second Automatic winding in both directions Central rotor on ball bearings 22-carat white gold with “Côtes de Genève” pattern Functions Hour and minutes in the center Date indicator positioned around the carriage Center seconds-hand 30-minute counter at 3 o’clock 12-hour counter at 6 o’clock Tourbillon: The carriage (at 11 o’clock) makes 1 turn per minute Case 18-carat white gold 18-carat white gold ZENITH push buttons and crown Diameter : 45 mm, Diameter opening : 35 mm Curved sapphire glass with anti-reflection treatment on both sides Transparent sapphire case back Water-resistance up to 30 meters Dial White gold dial and plain silver dial 18-carat black rhodied white gold bridge 18-carat black rhodied white gold hand-mounted applique indexes Three-dimensional gold indexes in progressive size Hands 18-carat white gold faceted hands Strap Black alligator leather strap, hand-stitched tone-in-tone, lined with silky Alzavel calfskin Buckle 18-carat white gold ChronoMaster triple folding buckle stamped with the historical ZENITH star on the cap.

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