Strap for Rolex Datejust 31 278245

The lug width of the Rolex Datejust 31 ref. 278245 is 16mm. This measurement is taken between the two lugs using a digital calliper placed directly against the Everose gold case, and determines compatibility with any aftermarket strap.

For an 18-carat Everose gold case, an alligator strap in cognac, burgundy or midnight blue is the most coherent aesthetic pairing. Cordovan and Box Calf leather are valid alternatives for a more understated profile. The critical requirement is a 16mm lug width for a precise fit.

The original Rolex strap is secured by standard spring bars. To remove it, a spring bar tool must be inserted into the lug slot to compress the spring and release the strap. Care must be taken to avoid scratching the Everose gold case. If in doubt, it is advisable to consult an authorised Rolex retailer or a qualified watchmaker.

Yes: any strap with a 16mm lug width and standard spring bars is compatible with the Rolex Datejust 31 278245. Milanostraps.it offers a curated selection of handcrafted 16mm straps in leather, cordovan and technical materials, made to order by Casati Milano atelier or available for immediate purchase online.

Longevity depends on the material and frequency of use. A quality alligator strap, with proper care — rotation between straps, protection from moisture, application of a specific leather conditioner — maintains its structural and aesthetic integrity for 3 to 5 years of regular wear. Cordovan and vegetable-tanned calf tend to last longer, developing a distinctive patina. Prolonged exposure to perspiration and water accelerates deterioration in any leather.