The Zenith El Primero Chronomaster Sport is a bold evolution of the brand’s chronograph legacy—modern in design yet unmistakably rooted in one of watchmaking’s most storied calibres. With its 41mm stainless steel case and polished ceramic bezel, it carries the athletic elegance of a contemporary sports chronograph, while paying homage to the DNA of the original El Primero lineage.

The tri-color subdials—a signature of Zenith’s chronographs since 1969—contrast beautifully against a crisp black or white lacquered dial, balancing technical clarity with visual flair. A date window subtly integrated at 4:30 completes the dial without disrupting its symmetry.

At its heart beats the legendary El Primero 3600 movement, a high-frequency automatic chronograph ticking at 5Hz (36,000 vph), allowing for 1/10th of a second time measurement—visible in real time via the central chronograph hand as it completes a full sweep every 10 seconds. With a 60-hour power reserve and column-wheel architecture, it offers both precision and pedigree.

Fitted with a steel bracelet or rubber strap, the Chronomaster Sport is as versatile as it is technically impressive

Model – El Primero Chronomaster
Reference – 03.3100.3600/69.M3100
Year – 2021
Size – 41mm
Dial – White
Case Material – Steel
Bracelet Material – Steel
Movement – Automatic
Power Reserve – 60hrs
Water resistance – 100m
Condition – 9/10
Accs – Full Set
Remarks –