====== Zenith El Primero calibres ======
  *Main Article [[Zenith El Primero]]

===== Original El Primero =====
  * [[Zenith 3019PHC]] - Quickset date
    * [[Zenith 400|Zenith 40.0, 400]] - Reissued in 1985
  * [[Zenith 3019PHF]] - Quickset date, pusher-set day, month, pusher-set [[moon phase]]
    * [[Zenith 410|Zenith 41.0, 410]] - Reissued in 1985

===== New Complications =====
  * [[Zenith 400|Zenith 400B]] - Date window moved
  * [[Zenith 405|Zenith 405, 405B]] - [[Flyback]] chronograph, quickset date
  * [[Zenith 420]] (1994) - [[Hand-winding]], quickset date

===== Third-Generation =====
  * 2002 updates
    * [[Zenith 4001]] (2002) - [[Flyback]] chronpgraph, [[full calendar]], [[moon phase]] by disc
    * [[Zenith 4002]] (2002) - Quickset date at 6:00, small seconds at 9:00, 30-minute counter at 3:00
    * [[Zenith 4003]] (2003) - [[Flyback]] chronograph, [[perpetual calendar]], [[moon phase]] by disc
    * [[Zenith 4009]] (2002) - [[Flyback]] chronograph, [[full calendar]], [[moon phase]] by hand
    * [[Zenith 4100]] - [[Triple calendar]], [[moon phase]] at 6:00, 30-minute counter at 3:00, small seconds at 9:00
  * Updated 2005 El Primero
    * [[Zenith 4010]] (2012) - [[Big date]] at 6:00, 30-minute counter at 3:00, small seconds at 9:00
    * [[Zenith 4021|Zenith 4021, 4023]] (2005) - [[Power reserve indicator]] by central pointer with 6:00 scale, 30-minute counter at 3:00, [[open heart]]
    * [[Zenith 4026]] (2005) - [[Rattrapante]] chronograph, [[big date]] at 6:00, 30-minute counter at 3:00, small seconds at 9:00
    * [[Zenith 4054]] - [[Annual calendar]], 60 minute counter and date window at 6:00, small seconds at 9:00, day and month windows at 3:00
    * [[Zenith 4055]]
    * [[Zenith 4062]] - [[Open heart]], 30-minute counter at 3:00, no date
    * [[Zenith 4063]] - Open heart, 30-minute counter at 3:00, 12 hour counter at 6:00, no date
    * [[Zenith 4068]] - [[Big date]]
    * [[Zenith 4069]] - No date or hour counter
  * 2010 Striking 10th El Primero
    * [[Zenith 4052|Zenith 4052 B, 4052 W]] (2010) - "Striking 10th" [[foudroyante]] (also skeletonized)
    * [[Zenith 4057|Zenith 4057 B]] (2011) - "Striking 10th" [[foudroyante]] [[flyback]]
  * 2014 [[Silicon escapement]] El Primero
    * [[Zenith 4039]] - [[Big date]] at 2:00, 30-minute counter at 3:00, [[retrograde]] [[power reserve indicator]] at 6:00, open heart
    * [[Zenith 4047]] - [[Big date]] at 2:00, 30-minute counter at 3:00, [[moon phase]] at 6:00, open heart, [[silicon]] escape wheel and lever
    * [[Zenith 4061]] (2014) - Silicon escape wheel and lever, no date, open heart, 30-minute counter at 3:00, 12 hour counter at 6:00
    * [[Zenith 4613]] (2014) - No chronograph or date, silicon escape wheel and lever

===== Fourth Generation =====
  * [[Zenith 3600]] (2019) - 10-second chronograph sweep hand driven directly from the escape wheel

===== Fifth generation =====
    * [[Zenith 9004]] (2017) - Two independent high-frequency escapements beating at 50Hz for the chronograph function and 5Hz for timekeeping, central chronograph hand makes one turn each second

===== Haute Horology =====
  * Tourbillons (from 2004) - 10 second 
    * [[Zenith 4033]] - [[Tourbillon]], [[perpetual calendar]]
    * [[Zenith 4005]] (2005) - [[Tourbillon]] Grande ChronoMaster XXI
    * [[Zenith 4035 D]] - 1-minute [[tourbillon]] at 11:00 with date, 30 minute counter at 3:00, 12 hour counter at 6:00
    * [[Zenith 4035 SX]] (2005) - 1-minute [[tourbillon]] at 11:00 with date, 30 minute counter at 3:00, 12 hour counter at 6:00
    * [[Zenith 4041]] - [[Tourbillon]] with date at 11:00, 30 minute counter at 3:00, 12 hour counter at 6:00
    * [[Zenith 4041 C]] - [[Tourbillon]] at 11:00, no chronograph or date
  * Chiming
    * [[Zenith 4031]] (2005) - [[Alarm]], [[minute repeater]]
    * [[Zenith 4043]] - [[Minute repeater]], 30 minute counter at 3:00, small seconds at 9:00
    * [[Zenith 4046]] - [[Alarm]], [[power reserve indicator]], [[24 hour]] hand, 30 minute counter at 3:00
  * Hand-winding El Primero
    * [[Zenith 4810]] (2014) - Hand winding, no chronograph, [[chain and fusée]], power reserve indicator
      * [[Zenith 4810|Zenith 4810C]] (2016)
    * [[Zenith 8804]] (2014) - Hand winding, "Gravity Control" gyroscope, no chronograph, power reserve indicator at 3:00, small seconds at 9:00
      * [[Zenith 8805]] (2015) - Hand winding, "Gravity Control" gyroscope, [[chain and fusée]], no chronograph, power reserve indicator at 4:00, small seconds at 9:00
    * [[Zenith 8808]] - Hand winding, "Gravity Control" gyroscope, no chronograph, power reserve indicator at 3:00, retrograde equation of time at 9:00
    * [[Zenith 8812|Zenith 8812 S]] (2018) - Hand winding "gravity control" gyroscope
    * [[Zenith 9020]] (2019) - Dual tourbillons, one at 10 Hz and another at 100 Hz

===== Ebauche Variants =====
  * Based on [[Zenith 400|El Primero Cal. 400]]
    * [[Bulgari]] [[BVL 328]]
    * [[Hublot]] [[HUB4700]]
    * [[Panerai]] [[OP IV]]
    * [[Panerai]] [[OP VI]]
    * [[Rolex 4030]]
    * [[TAG Heuer]] [[TAG Heuer Calibre 36|Calibre 36]]
    * [[TAG Heuer]] [[TAG Heuer Calibre 36|Calibre 36 Flyback]]


{{tag>Zenith_calibres Zenith_El_Primero_calibres Lists_of_calibres Zenith}}