A modernized El Primero 400 featuring Zenithium, an exclusive alloy made from aluminum, titanium, and niobium developed by Zenith. The Zenithium strengthens the chronograph bridge and balance for improved shock resistance. Features a full tungsten rotor with guilloche pattern. Used in the Defy Classic chronograph models.
Movement Type
Automatic
Jewel Count
31 jewels
Power Reserve
50h
Frequency
36,000 vph (10 Hz)
Diameter
30mm
Height
6.5mm
Display Type
Analog
Rotor Type
bidirectional
Winding
ball bearing, tungsten rotor with guilloche pattern
Shock Protection
Zenithium alloy
BRAND
ZenithTYPE
AutomaticSTATUS
In ProductionMANUFACTURE
In-houseLAUNCH YEAR
2018CALIBER FAMILY
El PrimeroCOUNTRY
SwitzerlandALSO KNOWN AS
