Family: El Primero36,000 vph (10 Hz)
The Zenith caliber 3620 is an automatic movement from the El Primero family, introduced in 2020. It is a time-only caliber operating at 36,000 vph, featuring a 10-second small seconds subdial. As an in-house movement, it powers the Defy Classic skeletonized models. The caliber remains in production.
TECHNICAL SPECIFICATIONS
Movement Type
Automatic
Frequency
36,000 vph (10 Hz)
Display Type
Analog
FEATURES
Small Seconds
QUICK FACTS
BRAND
TYPE
AutomaticSTATUS
In ProductionMANUFACTURE
In-houseLAUNCH YEAR
2020CALIBER FAMILY
El PrimeroALSO KNOWN AS
cal. 3620