Zenith
El Primero 03.2170.4613/21.C714— lug 20mm
Zenith El Primero 03.2170.4613/21.C714: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 20mm lug width to preserve the original sartorial balance."
Technical Specifications
Zenith 03.2170.4613/21.C714The essential strap measurement.
Browse 20mm straps →03.2170.4613/21.C714
Zenith caliber El Primero 4613 Hours, Minutes, Small Seconds
The Heritage
Compatible Straps
Selected for the 20mm lug width of the El Primero
FAQ
What lug width does the Zenith El Primero 03.2170.4613/21.C714 have?
The Zenith El Primero 03.2170.4613/21.C714 comes with a 20mm lug width. This size is proportioned for the 40mm case to maintain correct balance. You can verify it by measuring the internal distance between the two lugs with a digital caliper.
Which strap material pairs best with the Zenith El Primero?
Fine-grained alligator in chocolate brown or deep blue enhances the racing character without competing with the satin dial. For a more casual look, anthracite grey grained calf maintains elegance while allowing natural aging. Black natural rubber is the ideal choice for perspiring wrists or marine environments.
How do you change the strap on the Zenith El Primero 03.2170.4613/21.C714?
Obtain a spring bar remover tool or small flat screwdriver. Place the watch on a soft surface, access the pins from one side, gently push downward to disengage them, then remove the strap. Reinsert the pins into the new strap, aligning the lugs perfectly.
Are aftermarket straps compatible with the El Primero 03.2170.4613/21.C714?
Yes, all straps with a 20mm lug width are compatible with this model. On milanostraps.it you'll find a selection of Italian artisanal straps in various materials—leather, rubber, fabric—ready to ship or customizable through the Casati Milano atelier.
How long does a leather strap last on a daily-wear watch?
Durability depends on usage and maintenance. A natural calf strap typically lasts 2-4 years with daily wear; alligator, thanks to its fibrous density, can reach 5-7 years. Controlled aging of the leather is part of the design: the patina that develops tells the story of your watch.
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 →By appointment only · Milan
The atelier's website: casatimilano.com