====== Zenith 4002 ======
**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".

<WRAP ud ud_mov>
**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 [[ligne]]s
  * D 30.0 mm, H 6.5 mm
  * 31 [[jewels]]
  * 36,000 A/h
  * Power reserve &gt; 50h

**Production period:**
  * Since [[2002]]
</WRAP>

{{tag>Movements Automatic_movements Chronograph_movements Zenith_calibres Zenith_El_Primero_calibres}}