Zenith
El Primero 03.2044.4061/01.C746— lug 20mm

The Zenith El Primero 03.2044.4061/01.C746 is equipped with a 20mm lug width. This measurement is determined by the case geometry and the stylistic proportions conceived by Zenith for this model. The measurement is taken by calculating the internal distance between the two case lugs, from the inner edge of one lug to the other. It is essential to verify this measurement precisely before ordering a strap to ensure perfect compatibility.

The choice of the best strap depends on the intended use. For formal elegance, alligator or crocodile in bordeaux or cognac tones offers maximum refinement, enhancing the chronograph vocation. For daily use, box calf ensures comfort and develops natural patina over time. For sports or humid environments, a ballistic nylon NATO or FKM rubber guarantees unaltered practicality. Milano Straps offers all these options in ready-made and custom straps at Casati Milano.

The 03.2044.4061/01.C746 is equipped with screw-down lugs, as is customary in Zenith chronographs. To remove the original strap, you need to use a small dedicated tool (straight or star-shaped depending on the configuration) to loosen the lug screws without forcing, avoiding scratches to the case. Once the lugs are fully unscrewed, the strap comes out easily. Installing the new strap follows the reverse process: position the lugs in the lateral holes of the case, insert the strap from both sides, and tighten the screws progressively. If you are not experienced with this operation, the Casati Milano atelier can perform it for you during an appointment visit.

Yes, the 20mm straps in the Milano Straps catalog are certified quality aftermarket products, crafted by specialized artisans. Compatibility is guaranteed for the El Primero 03.2044.4061/01.C746 from a dimensional standpoint (20mm width). Milano Straps artisanal straps offer thicknesses and finishes comparable to the best originals, with the advantage of customization (choice of leather, color, thread color, initials). Casati Milano provides an 18-month warranty on every custom creation.

The lifespan of a leather strap depends on the material, frequency of use, and environmental conditions. Quality alligator, used with care, typically lasts 4-6 years before requiring replacement; box calf has similar durability but tends to develop patina more quickly. Constant exposure to sunlight, humidity, and sweat reduces longevity. With proper maintenance (regular cleaning, natural drying, avoiding baths and showers), lifespan can be extended. A ballistic nylon NATO, on the other hand, has potentially unlimited lifespan if not subjected to excessive mechanical stress. Casati Milano recommends rotating between multiple straps to extend the life of each individual piece.