Zenith Chronomaster Sport El Primero Steel Black Dial Ceramic Bezel 03.3100.3600/21.M3100

The Zenith Chronomaster Sport — reference 03.3100.3600/21.M3100 — represents the contemporary evolution of one of watchmaking's most storied chronograph lineages. Introduced as part of Zenith's renewed commitment to the El Primero movement's heritage, the Chronomaster Sport distills decades of high-frequency chronograph expertise into a robust, 41mm stainless steel package that appeals equally to serious collectors and everyday enthusiasts seeking a true manufacture timepiece.

Design-wise, the Chronomaster Sport is immediately recognizable. The 41mm stainless steel case provides an ideal wrist presence — substantial without being oversized — and is paired with a striking ceramic bezel whose deep, matte finish offers both visual contrast and impressive scratch resistance. The black index dial is clean and legible, with the tricolor sub-dial arrangement that has become synonymous with the El Primero architecture lending a dynamic, layered quality to the face. Fitted on a stainless steel bracelet, the watch transitions effortlessly from a racing paddock to a boardroom.

At the heart of the Chronomaster Sport beats the El Primero caliber, Zenith's celebrated high-frequency automatic chronograph movement. The El Primero has been a cornerstone of Swiss watchmaking since its debut in 1969, widely regarded as the world's first automatic integrated chronograph movement. Its high oscillation frequency allows the chronograph seconds hand to measure time in precise increments, a technical feat that remains impressive more than half a century after the caliber's introduction and continues to set the benchmark for in-house chronograph movements.

On the wrist, the Chronomaster Sport strikes a confident balance between sportiness and refinement. The 41mm diameter sits comfortably across a wide range of wrist sizes, and the combination of the black dial, ceramic bezel, and polished-and-brushed steel bracelet gives the watch a contemporary, versatile character. Whether worn against a race suit or a dress shirt, the reference carries an unmistakable sense of purpose and pedigree that few chronographs at this price point can match.

Buying brand new means this Chronomaster Sport arrives in pristine, unaltered condition, backed by Zenith's manufacturer warranty. At Bizak & Co., we specialize in sourcing and presenting luxury timepieces like reference 03.3100.3600/21.M3100 at competitive prices, with the expertise and transparency you expect from a trusted dealer. Browse our current inventory online at bizakandco.com or reach out directly — our team is on hand to answer questions, arrange secure shipping, and ensure your purchase of this exceptional Zenith chronograph is seamless from first inquiry to delivery.