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Zenith 3604

Zenith 3604 (click to enlarge!)
Zenith 3604
© Zenith

El Primero 3604 is a manufacture movement by Zenith.

Automatic column-wheel chronograph movement, able to measure and display the 1/10th of a second. Based upon the calibre Zenith 3600 from 2021 with power reserve of 60 hours and stop-second mechanism.

This variant features an open base plate and bridges that allow for a clearer view of the high-frequency 5Hz escapement with lubricant-free silicon escape wheel and pallet lever.

Used e.g. with the model Zenith Chronomaster Open (2022).




  • 13¼ lignes
  • D 30.0 mm, H 6.6 mm
  • 35 jewels
  • 269 components
  • 36,000 A/h
  • Power reserve 60 h

Production period:

zenith_3604.txt · Last modified: 02.12.2022 20:38 by

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