Zenith · El Primero

Strap for El Primero Chronomaster Grande Date Bracelet

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

Lug width20 mm
Case diameter46 mm
Reference03.2160.4047/01.M2160
FamilyEl Primero
MovementZenith caliber El Primero 4047 hours, minutes, small seconds | date | Chronograph, column wheel | moonphase
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 03.2160.4047/01.M2160

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The El Primero 03.2160.4047/01.M2160, 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 4047 caliber with column-wheel chronograph, small seconds, date, and moon phase functions. The movement operates at 36,000 vibrations per hour, ensuring tenth-of-a-second precision for chronograph measurements.

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