Zenith El Primero calibres

Main Article: Zenith El Primero

Original El Primero

• Zenith 3019PHC - Quickset date
  • Zenith 40.0, 400 - Reissued in 1985
• Zenith 3019PHF - Quickset date, pusher-set day, month, pusher-set moon phase
  • Zenith 41.0, 410 - Reissued in 1985

New Complications

• Zenith 400B - Date window moved
• 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, 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 B, 4052 W (2010) - "Striking 10th" foudroyante (also skeletonized)
  • 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)

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 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 S (2018) - Hand winding "gravity control" gyroscope
  • Zenith 9004 (2017) - Dual escapements, one at 10 Hz and another at 100 Hz
  • Zenith 9020 (2019) - Dual tourbillons, one at 10 Hz and another at 100 Hz

Ebauche Variants

• Based on El Primero Cal. 400
  • Bulgari BVL 328
  • Hublot HUB4700
  • Panerai OP IV
  • Panerai OP VI
  • Rolex 4030
  • TAG Heuer Calibre 36
  • TAG Heuer Calibre 36 Flyback