Strap for Calatrava 5120G

The lug width of the Calatrava 5120/1G-001 is 18 millimetres. This measurement is specific to this model and is essential to ensure proper seating of the strap on the case. When ordering an aftermarket strap, the lugs must be constructed to exactly 18 mm width to prevent unwanted rotation and ensure optimal wrist comfort.

For the Calatrava 5120/1G-001, alligator represents the canonical choice. Its natural grain, capacity to develop patina over time, and structural rigidity make it ideal for maintaining the restrained elegance of the watch. Excellent alternatives include vegetable-tanned calf leather for more dramatic ageing, shell cordovan for superior durability, or FKM rubber for versatile daily wear without aesthetic compromise.

To change the strap, remove the watch from your wrist and place it on a protected surface. Using a dedicated spring bar tool, apply gentle downward pressure on the internal spring tab, then extract the pin from the case. Repeat for the other lug. Insert the new strap by aligning the lugs with the case holes and push until the spring fully engages. If inexperienced, we recommend entrusting this task to a professional.

Yes, all aftermarket straps with 18-millimetre lugs are compatible with the Calatrava 5120/1G-001. It is essential to verify that the width is exactly 18 mm to ensure proper seating on the case. At milanostraps.it, a collection of artisanal straps in alligator, vegetable-tanned calf, shell cordovan, and FKM rubber is available, all constructed with precision for this specific measurement.

The lifespan of a leather strap depends on the material and frequency of use. A quality alligator strap can last 3 to 5 years of daily wear before aesthetic replacement becomes desirable, whilst shell cordovan, due to its denser nature, can exceed 5 years. Vegetable-tanned calf tends to age more rapidly but develops a desirable patina. With proper maintenance — avoiding excessive moisture and applying specific conditioners — longevity is significantly extended.