Zenith · El Primero
Strap for El Primero Chronomaster 42 Stainless Steel / Anthracite / Fabric / Classic Cars
Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
20mm
Lug width20 mm
Case diameter42 mm
Reference03.2046.400/25.C802
FamilyEl Primero
MovementZenith caliber El Primero 400B hours, minutes, small seconds | date | Chronograph, column wheel
Year2017 - 2021
CaseStainless Steel
Straps for the El Primero 03.2046.400/25.C802
Selected for the 20 mm lug width · workshop selection
Black Rubberized Alligator Strap with Red Tribal Stitching€185
Matte Dark Gray Alligator Strap€195
Millennium Green Alligator Strap — Minimal Stitching€149
Vintage Brown Calfskin Strap — Natural Patina€98
Hammered Calfskin Strap Light Blue€98
The El Primero 03.2046.400/25.C802, seen from the bench
The Zenith El Primero Chronomaster 42 (ref. 03.2046.400/25.C802) features the legendary El Primero 400B caliber with 36,000 beats/hour and column-wheel chronograph mechanism. The stainless steel 316L case measures 42mm in diameter with sapphire caseback. Fitted with a 20mm lug width, this sports chronograph combines technical precision with modern design, offering over 50 hours power reserve and standard pin-and-lug attachments for strap compatibility.
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.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only