Zenith · El Primero

Strap for El Primero Chronomaster Open Stainless Steel / Grey 1969 / Fabric

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

Lug width20 mm
Case diameter42 mm
Reference03.2040.4061/23.C802
FamilyEl Primero
MovementZenith caliber El Primero 4061 hours, minutes, small seconds | Chronograph, column wheel
Year2017 - 2021
CaseStainless 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 El Primero 03.2040.4061/23.C802

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The El Primero 03.2040.4061/23.C802, seen from the bench

The Zenith El Primero Chronomaster 03.2040.4061/23.C802 is the contemporary evolution of the legendary automatic chronograph introduced in 1969. It features a 42mm stainless steel case with the celebrated El Primero 4061 manufacture caliber, capable of measuring tenths of a second at 36,000 oscillations per hour. The watch requires a 20mm lug width for proper fitment and is characterized by its column-wheel chronograph mechanism with hours, minutes, and running seconds counters.

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