Zenith 4009

Zenith 4009 is a calibre by Zenith.

Self-winding chronograph movement with flyback function, full calendar and moon phase.

Further development of the calibre Zenith 410 (El Primero) with bi-directional winding ball-bearing central rotor.

Used e.g. with the model Zenith Grande Chronomaster XT “El Primero”.

Description:

Self-winding movement, bi-directional winding
Escapement Stone lever
Yoke winding system
Rotor in 22ct gold or bimetallic
Chronometer certificate (COSC)
Column wheel calibre
Shock protection Kif-Ultraflex
346 components

Functions:

Chronograph
Small seconds
Flyback function
Triple calendar (day of the week, month, date)
Moon phase operated via pusher at 6 o'clock

Data:

13¼ lignes
D 30.0 mm, H 7.55 mm
31 jewels
36,000 A/h
Power reserve > 50h

Production period:

Since 2002

Movements | Automatic movements | Chronograph movements | Flyback chronograph movements | Zenith calibres | Zenith El Primero calibres