Zenith · Chronomaster Sport

Strap for Chronomaster Sport Yoshida Stainless Steel / Aqua Blue / Bracelet

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter41 mm
Reference03.3105.3600/52.M3100
FamilyChronomaster Sport
MovementZenith caliber El Primero 3600 hours, minutes, small seconds | date | Chronograph, column wheel
Year2022
CaseCeramic, Stainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Chronomaster Sport 03.3105.3600/52.M3100

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Chronomaster Sport 03.3105.3600/52.M3100, seen from the bench

The Zenith Chronomaster Sport 03.3105.3600/52.M3100 is a modern evolution of a legendary chronograph, built on the heritage of the El Primero automatic column-wheel caliber. The 41mm case combines dark gray ceramic with stainless steel 316L, while the matte black dial features white subdials characteristic of contemporary sports watches. The El Primero 3600 movement beats at 36,000 vibrations per hour, delivering centesimal chronograph precision. The integrated 20mm lug width is critical for strap selection and must be measured precisely between the case attachment points.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only