Zenith · El Primero
Strap for El Primero Chronomaster Power Reserve Black
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
Reference03.2080.4021/21.C496
FamilyEl Primero
MovementZenith caliber El Primero 4021
Hours, Minutes, Small Seconds | Chronograph, Column wheel | Power Reserve Indicator
CaseStainless Steel
Straps for the El Primero 03.2080.4021/21.C496
Selected for the 20 mm lug width · workshop selection
Black Alligator Strap with Light Blue Edges€210
Black Alligator Strap with White Edges€210
Millenium Cognac Alligator Strap€270
Matte Blue Alligator Strap€270
Green Rubberized Alligator Strap with Ecru Tribal Stitching€185
The El Primero 03.2080.4021/21.C496, seen from the bench
The Zenith El Primero Chronomaster Power Reserve Black ref. 03.2080.4021/21.C496 is the contemporary evolution of the legendary chronograph launched in 1969. The 42 mm stainless steel case features the integrated lug architecture characteristic of Zenith's design philosophy. The Zenith 4021 caliber delivers chronographic precision through its pillar wheel mechanism, ensuring instantaneous mode switching without microslip. The power reserve indicator allows precise monitoring of energy autonomy. The 20 mm lug width is the specific construction measurement for this reference.
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