Strap for Cosmograph Daytona Everose / Cerachrom / Ivory / Oysterflex

The lug width of the Rolex Daytona 116515LN-0014 is 20 millimetres. This measurement represents the distance between the two pins of the spring that secures the strap to the case. It is the modern Rolex standard for 40-millimetre chronographs.

For a Daytona in Everose gold, alligator is the natural choice, in dark brown or black tones. However, shell cordovan, vegetable-tanned calf leather, and FKM rubber straps remain valid alternatives depending on your intended use and aesthetic preference.

The Daytona uses a simple spring-bar mechanism within the lug system. With a flatted tool (spring bar tool), gently press inward on the small spring to release one end of the bar, then slide the strap free. Reverse the process to install the new strap. We recommend having a qualified watchmaker perform this operation to avoid scratches on the case.

Yes, any strap with a 20-millimetre lug width is compatible. The quality of the aftermarket strap depends on its manufacture and materials: first-grade alligator, vegetable-tanned calf, shell cordovan, and vulcanised rubber all guarantee longevity and aesthetics befitting the watch.

A quality artisanal alligator or shell cordovan strap lasts 4 to 6 years under daily wear conditions. Factors such as sunlight exposure, humidity, and perspiration accelerate ageing. Periodic maintenance with natural oils and storage in a dry environment extend durability. Casati Milano offers an 18-month guarantee against manufacturing defects.