Zenith · El Primero

Strap for El Primero 36.000 VPH Blue

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
Reference03.2041.400/51.C496
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 03.2041.400/51.C496

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The El Primero 03.2041.400/51.C496, seen from the bench

The El Primero was introduced by Zenith in 1969 as one of the first high-frequency automatic chronograph movements. It features the El Primero 400B caliber with column-wheel and functions of hours, minutes, small seconds, date, and chronograph. The 03.2041.400/51.C496 reference maintains the original technical characteristics of the movement with a frequency of 36,000 vibrations per hour.

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