Zenith · El Primero

Strap for El Primero Synopsis

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 diameter40 mm

Reference03.2170.4613/01.C713

FamilyEl Primero

MovementZenith caliber El Primero 4613 Hours, Minutes, Small Seconds

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 03.2170.4613/01.C713

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The El Primero 03.2170.4613/01.C713, seen from the bench

The Zenith El Primero Synopsis 03.2170.4613/01.C713 is a significant automatic chronograph featuring the legendary El Primero caliber 4613 movement launched in 1969. The watch houses a 40mm stainless steel case with satin and polished finishing paired with an integrated ladder-link bracelet. The 20mm lug width integrates harmoniously with the case proportions, supporting the chronograph's sports-elegant design and exceptional durability.

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