Strap for Rolex Daytona 6240

The Rolex Daytona 6240 has a lug width of 19 mm. This is a characteristic measurement for Rolex chronographs of the 1960s and requires straps specifically made for this width, which are not interchangeable with the more common 20 mm without adaptation.

For a steel Daytona 6240, a vegetable-tanned alligator strap at 19 mm is the most refined choice: the belly grain complements the proportions of the 37 mm case. Alternatively, smooth calf leather or shell cordovan offer character and durability for daily wear. For sportier settings, a NATO or rubber strap provides practicality and easy interchangeability.

Strap replacement requires a spring bar tool to remove the spring bars from the lugs. As this is a vintage watch with original steel lugs, it is advisable to proceed carefully or entrust the task to a watchmaker to avoid scratching or damaging the lugs. Spring bars must have a diameter compatible with the lug holes, typically 1.5 mm on this reference.

Yes, several artisan manufacturers produce 19 mm straps compatible with the Daytona 6240. It is essential to verify not only the lug width (19 mm) but also the curvature of the strap's tail end, which must fit the geometry of the vintage case. Milanostraps.it offers a curated selection of 19 mm straps suited to vintage references of this calibre.

Longevity depends on the material and usage habits. A quality vegetable-tanned alligator strap, with regular care, typically lasts 3 to 5 years of daily wear. Shell cordovan is structurally more resistant to surface abrasion and can last considerably longer. Frequent exposure to perspiration and moisture shortens the leather's lifespan; in such cases, alternating with a rubber or NATO strap is advisable.