Zenith · El Primero

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

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.M2040

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.M2040

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The El Primero 03.20416.4061/51.M2040, seen from the bench

The Zenith El Primero 03.20416.4061/51.M2040 is the contemporary evolution of a 1969 legend. The stainless steel case measures 42mm in diameter and houses the El Primero caliber 4061 movement, beating at 36,000 vibrations per hour with three chronograph counters. The 20mm lug width is the fixed standard for this reference and cannot be varied. This chronograph integrates the column wheel mechanism that defines Zenith's technical heritage and ensures precise time measurement.

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