Zenith 4002

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Zenith 4002 is a calibre by Zenith.

Further development of the automatic chronograph Zenith 410 (El Primero) with bi-directional winding bear-bearing central rotor. Date display.

Used e.g. with the model Zenith Grande Class "El Primero".

Description:

Self-winding movement, bi-directional winding
Escapement: Stone lever
Yoke winding system
Chronometer certificate (COSC)
Column wheel calibre
Shock protection Kif-Ultraflex
263 components

Functions:

Chronograph
Small seconds
Rapid calendar advance

Data:

13¼ lignes
D 30.0 mm, H 6.5 mm
31 jewels
36,000 A/h
Power reserve > 50h

Production period:

Since 2002