Zenith · El Primero
Strap for El Primero Sport
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 diameter46 mm
Reference03.2280.400/91.M2280
FamilyEl Primero
MovementZenith caliber El Primero 400B hours, minutes, small seconds | date | Chronograph, column wheel
Year2015
CaseStainless Steel
Straps for the El Primero 03.2280.400/91.M2280
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 03.2280.400/91.M2280, seen from the bench
The Zenith El Primero Striking 10th ref. 03.2280.400/91.M2280 is powered by the Zenith El Primero 400B caliber, an automatic movement running at 36,000 bph and certified to measure tenths of seconds since 1969. The 46mm stainless steel case embodies the sport-elegant aesthetic of Swiss watchmaking heritage, housing a chronograph with column wheel, small seconds, and date functions. The lug width is standardized at 20mm, proportionally matched to the 46mm case for balanced wrist presence.
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