Strap for Rolex Daytona 116589saciI

The lug width of the Rolex Cosmograph Daytona ref. 116589saciI is 20 millimetres. This measurement represents the distance between the two spring bars (the lateral projections of the case). To verify this accurately, use a digital caliper and measure the space between the lugs themselves, not the strap — the latter may be worn and not reflect original specifications.

For the 116589saciI, we recommend dark alligator leather (brown or black) to enhance the contrast with white gold pavé. Vegetable-tanned calf leather represents a smoother, more contemporary alternative. Both allow visual balance of the case weight and diamond inlay. Avoid rubber or NATO straps, which would be stylistically incongruous with the precious nature of the timepiece.

The strap is changed by extracting the spring bars from the case using a specific tool (steel prybar or dedicated removal instrument). Position the watch on a soft surface, locate the lateral pins, gently push them until dislodged, and remove the old strap. Insert the new strap by aligning the holes with the lugs and reinsert the pins. For a white gold pavé Daytona, we recommend entrusting the task to an experienced watchmaker or our Casati Milano atelier, where you can personally select the leather.

Yes, provided the strap has a 20-millimetre lug width. However, we recommend selecting high-quality leathers — such as alligator, vegetable-tanned calf, or shell cordovan — to ensure durability and aesthetic coherence with the watch's value. A substandard strap not only compromises visual appeal but may damage the case lugs through friction and improper movement.

A high-quality leather strap, such as alligator or vegetable-tanned calf, maintains structural integrity for 3–5 years with regular wear and proper maintenance. Longevity depends on frequency of use, exposure to humidity and sunlight, and the specific properties of the leather. Alligator tends to age better, developing a natural patina that increases aesthetic character. Avoid direct water exposure and periodically apply a conditioner formulated for fine leathers.