The Grande Class Open this year faced a new challenge, a complication capable of showing the time simultaneously in 24 different locations in the world: Tokyo, Paris, New York and even Hong Kong at a glance. Thanks to a rotating disk anchored by the hour hand, it is possible to tell the time in any time zone and, in addition, determine whether it is night or day with the help of the sun or the star pictured on the disk. This is easily done by setting the city you are in at twelve noon and activating the crown situated at 11 o’clock.

Moreover, the Grande Class Traveller Open Multicity has a Grande Date with a three-disk patented exclusive mechanism that enables the date to be displayed very visibly occupying minimal calibre space.

To these technical features we have added a totally unique design displaying the cities on a spiral, giving the dial a sophisticated aesthetic in contrast with the sober 46 mm case. It is available in two versions: rose gold - classical and precious – as well as the more modern stainless steel. And of course a sapphire glass caseback, integrated black crocodile strap, triple folding clasp and the well known love for detail that is typical of all Zenith timepieces.

Caliber	:	El Primero 4037 Automatic chronograph movement with grande date 13``` caliber. Diameter : 30.50 mm. Height : 9.05 mm. 351 components. 36’000 vibrations per hour Power reserve over 50 hours 43 jewels Measures short time intervals to a 10th of a second Automatic winding in both directions Central rotor on ball bearings 22-carat gold or heavy metal oscillating weight with “Grain d’Orge” guilloché pattern
Functions	:	Hours and minutes in the center Small seconds-hand at 9 o’clock Chronograph: Center seconds-hand 30-minute counter at 3 o’clock Power Reserve indicator in the center Grande Date over 2 o’clock with instantaneous double jump 24 Time-zone system with day/night indicator
Case	:	Rose gold or Stainless Steel case Stainless Steel ZENITH push buttons and crowns Diameter : 46 mm / Diameter opening : 38 mm Curved sapphire glass with anti-reflection treatment on both sides Transparent sapphire case back Water-resistance up to 50 meters
Dial	:	Silvered “Grain d’Orge” guilloché dial. Open dial at 10 o’clock showing the heart of El primero 4037 Caliber Hand-mounted applique arabic numerals and indexes
Hands	:	Faceted hands in rose gold or ruthenium
Strap	:	Integrated handmade black alligator leather strap lined with silky Alzavel calfskin
Buckle	:	Rose Gold or Stainless Steel triple folded buckle with ZENITH star on the cap