Grande Class Grande Date

Case material
Bracelet strap

CaliberNEW El Primero 4010
Automatic chronograph movement with big date
COSC certified
13``` caliber. Diameter : 30 mm. Height : 7.65 mm. 306 components.
36'000 vibrations per hour
Power reserve over 50 hours
31 jewels
Measures short time intervals to a 10th of a second
Automatic winding in both directions
Central rotor on ball bearings
Heavy metal oscillating weight with “Côtes de Genève” pattern
FunctionsHours and minutes in the center
Small seconds-hand at 9 o'clock
Big Date over 6 o'clock with instantaneous double jump
Central second counter hand
30-minute counter at 3 o'clock
CaseStainless steel
Diameter: 44 mm
Diameter opening: 36 mm
Curved sapphire glass with anti-reflection treatment on both sides
Transparent sapphire case back
Water-resistance up to 50 meters
DialPlain silver or black dial with contrasted counters
Hand-mounted applique arabic numerals and indexes
Beveled window
HandsRhodium faceted hands
StrapBlack alligator leather strap, hand-stitched tone-in-tone, lined with silky Alzavel calfskin
Black rubber strap
BuckleStainless steel Grande Class triple folding buckle stamped with the historical ZENITH star on the cap
BraceletStainless steel bracelet with ZENITH triple folding clasp