Zenith · El Primero

Strap for El Primero Chronomaster Open Stainless Steel / Blue / Fabric

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

Lug width

20mm

20 mm straps All Zenith

Lug width20 mm

Case diameter42 mm

Reference03.20416.4061/51.C802

FamilyEl Primero

MovementZenith caliber El Primero 4061 Hours, Minutes, Small Seconds | Chronograph, Column wheel

CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

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Straps for the El Primero 03.20416.4061/51.C802

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The El Primero 03.20416.4061/51.C802, seen from the bench

The El Primero was introduced by Zenith in 1969 as the first high-frequency automatic chronograph movement. It features the El Primero caliber 4061 with column wheel and functions of hours, minutes, small seconds, and chronograph. The reference 03.20416.4061/51.C802 represents a contemporary version of this historic caliber.

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