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Grande Chronomaster XXT Open

Case material
-
Bracelet strap
-
Buckle
-
Movement
-
Reference
N/A
Collection
-
Description

Grande Chronomaster XXT
Open

Caliber  
  New movement El Primero 4021
Automatic chronograph movement
13```caliber. Diameter 30 mm. Height : 6.50 mm
39 jewels.
36'000 vibrations per hour
Power reserve over 50 hours
Measures short time intervals to a 10th of a second
Central rotor on ball bearings
Automatic winding in both directions
22-carat rose gold oscillating weight with “grain d'orge” guilloché pattern or bi-metal with “Côtes de Genève” pattern
Functions  
  Hours and minutes in the center
Small seconds-hand at 9 o'clock with a 3-branched hand
Power reserve indicator at 6 o'clock
Center seconds-hand
30-minute counter at 3 o'clock
Case  
  18-carat rose gold or stainless steel
18-carat rose gold or stainless steel 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-resistant up to 30 meters
Dial  
  Opened dial at 10 o'clock showing the hearth of El Primero
Silvered with “grain d'orge” guilloché pattern or black powdered dial
Hand-mounted applique roman numerals
Hands  
  18-carat rose gold or rhodium faceted hands.
Strap  
  Black alligator leather strap, hand-stitched tone-in-tone, lined with silky Alzavel calfskin.
Buckle  
  18-carat rose gold or stainless steel ChronoMaster triple folding buckle with the historical ZENITH star on the cap
Bracelet  
  Stainless steel bracelet with triple folding clasp