Strap for Cosmograph Daytona Yellow Gold / Cerachrom / Black / Oysterflex

The lug width (also called anse width) of the Rolex Daytona 116518LN-0039 is 20mm. This dimension is standard for Rolex sport chronographs of this calibre and allows the use of high-quality leather straps. To verify your case lug width, measure the distance between the two metal terminals that fit into the strap keeper slots.

For the 116518LN-0039, we recommend a deep black or dark brown alligator strap, which enhances the luxury of the yellow gold without competing visually. Elegant alternatives include vegetable-tanned calf leather in cognac tones, shell cordovan for a patina that evolves over time, or a charcoal grey FKM rubber for sports contexts. Avoid overly light leather: the Daytona requires a dark colour anchor.

To change the strap, remove the original lugs using a spring bar tool—a small metal lever inserted beneath the lug terminal and lifted from the keeper slot. Insert the flat tip of the tool into the hole, apply downward leverage to release one end of the spring bar. Repeat from the other side. Reverse the process with the new strap, ensuring the lugs are fully secured.

Yes, any strap with a 20mm lug width is compatible with the Daytona 116518LN-0039. Quality aftermarket straps (leather, alligator, rubber, NATO) provide a versatile solution for varying the watch's style without modifying the case. Always verify that the strap lug width is exactly 20mm to avoid gaps or insertion difficulties.

A high-quality leather strap (alligator, shell cordovan, vegetable-tanned calf) typically lasts 3–5 years with daily wear, depending on frequency of use and climate conditions. Natural leather ages and thins: prolonged exposure to humidity or direct sunlight accelerates deterioration. With Casati Milano, you receive an 18-month warranty against manufacturing defects and personalised advice on maintenance and care.