Zenith · El Primero

Strap for El Primero Chronomaster Open Stainless Steel / Silver 1969 / Rubber

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

Reference03.2040.4061/69.R576

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 03.2040.4061/69.R576

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The El Primero 03.2040.4061/69.R576, seen from the bench

The Zenith El Primero 03.2040.4061/69.R576 represents the contemporary evolution of a legend born in 1969. The El Primero calibre 4061 beats with the same obsessive precision as the world's first automatic chronograph with 36,000 bph frequency. The stainless steel case measures 42 mm in diameter and features a column-wheel chronograph mechanism. This model is part of the Chronomaster Open collection and has a 20 mm lug width, making it compatible with various aftermarket straps including rubber options.

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