Zenith · El Primero
Strap for Chronomaster 2 El Primero 50th Anniversary
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
Reference03.3001.3600/69.C816
FamilyEl Primero
MovementZenith caliber El Primero 3600 hours, minutes, small seconds | date | Chronograph, column wheel
Year2019
CaseStainless Steel
Straps for the El Primero 03.3001.3600/69.C816
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 03.3001.3600/69.C816, seen from the bench
The Zenith Chronomaster 2 El Primero 50th Anniversary, reference 03.3001.3600/69.C816, is a 42 mm stainless steel chronograph featuring the legendary El Primero 3600 caliber with column wheel and vertical escapement. Launched in 1969, this movement beats at 36,000 vibrations per minute—10 beats per second—and includes 31 jewels, 278 components, and a 50-hour power reserve. The case features a screw-down crown, fixed tachymeter bezel, and a lug-to-lug distance of 20 mm that maintains classical sports watch proportions.
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