Zenith · Chronomaster Original

Strap for Chronomaster Original Triple Calendar Stainless Steel / Green / Bracelet / Boutique Edition

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 diameter38 mm

Reference03.3400.3610/40.M3200

FamilyChronomaster Original

MovementZenith caliber El Primero 3610 hours, minutes, small seconds | date, day, month | Chronograph, column wheel | moonphase

Year2024

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 Chronomaster Original 03.3400.3610/40.M3200

Selected for the 20 mm lug width · workshop selection

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The Chronomaster Original 03.3400.3610/40.M3200, seen from the bench

The Zenith Chronomaster Original 03.3400.3610/40.M3200 is a modern reinterpretation of the 1969 original, powered by the El Primero 3610 caliber—the world's first automatic chronograph movement at 36,000 bph. The 38 mm stainless steel case features a bicolour black and silver dial with tachymetric bezel. The automatic movement houses a complex complication including hours, minutes, small seconds, date, day, month, and moonphase, with a distinctive vertical column organizing the chronograph functions. Water-resistant to 100 metres. Lug width: 20 mm.

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