Zenith El Primero Chronomaster Open Heart 42mm
Ref: 03.2040.4061/69.C496 | Watch Only | Very Good Condition | Serviced 2026 w/ records |

🔎 Key Details:
| Silver Dial | Automatic Chronograph Movement (Zenith El Primero 4061) | Open Heart Dial | Sapphire Crystal | Open Caseback | Black Alligator Strap |

Quick Facts:
The 03.2040.4061/69.C496 is a standout Chronomaster Open reference, pairing Zenith’s classic 42mm El Primero case with a silver dial and the signature dial-side opening that shows off the escapement. It has a much more technical look than a standard chronograph, while still keeping the clean Chronomaster layout.

Powered by the Zenith El Primero 4061, this reference offers the high-frequency automatic chronograph setup that made El Primero so iconic, along with an exhibition caseback and strong everyday wearability.

This example is in very good condition, comes watch only, and was serviced in 2026.

If you have any questions, please feel free to reach out, we are very easy to find everywhere :)