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