Zenith · El Primero

Strap for El Primero Chronograph

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
Reference03.2110.400/01.C498
FamilyEl Primero
MovementZenith caliber El Primero 400B Hours, Minutes, Small Seconds | Date | 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

Straps for the El Primero 03.2110.400/01.C498

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The El Primero 03.2110.400/01.C498, seen from the bench

The El Primero was introduced by Zenith in 1969 as the world's first automatic high-frequency chronograph movement. It houses the El Primero 400B calibre with hours, minutes, small seconds, date and column-wheel chronograph functions. The reference 03.2110.400/01.C498 represents one of the contemporary variants of this historic collection.

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