Strap for Classima Chronograph Stainless Steel / Silver / Alligator

The lug width of the Classima 10330 is 18mm. This is measured internally from one lug to the other, at the point where the strap bar secures to the case. This dimension is standard for this model and allows you to use any 18mm strap from contemporary artisanal collections.

For the Classima 10330, we recommend a high-quality alligator or calf leather strap that reflects the refined temperament of the case. Natural alligator offers a regular grain and ages beautifully over time. Shell cordovan, with its unique patina development, accompanies the watch through the years, creating a coherent aesthetic narrative. For daily versatility, structured calf leather with medium grain is ideal.

To change the strap, you will work with the spring bars—small pins that traverse the lugs. Using a dedicated spring bar tool or a small screwdriver, gently push the spring mechanism downward to release the pin from the original strap's hole. Insert the new strap, aligning the pin with the corresponding holes, and allow the spring to close. Verify that the pin is securely locked on both sides.

Yes, any strap with an 18mm lug width is compatible with the Classima 10330. Artisanal straps from Milano Straps are manufactured to identical sizing specifications, and you can choose from a range of leather types, colours, and finishes. We recommend verifying the strap thickness to ensure proper fit at the case lugs.

A quality leather strap, used daily, typically lasts 3 to 5 years. Duration depends on frequency of wear, care practices, and leather type. Shell cordovan and alligator perform exceptionally well over extended periods. To extend lifespan, avoid prolonged exposure to direct sunlight and humidity, and occasionally condition the leather with watchstrap-specific balms. Milano Straps provides an 18-month warranty on all artisanal straps.