Strap for Datejust 31 Yellow Gold / Domed / Grey - Roman / President

The lug width of the Rolex Datejust 31 278248-0032 is 16mm. This dimension is standard across the entire Datejust 31 line and should be measured internally between the two lugs using a digital calliper at the narrowest point of the attachment.

For the 18kt yellow gold case, a polished alligator strap in cognac or champagne tones is the most formal and elegant pairing. Shell cordovan is ideal for everyday wear due to its natural waxy lustre. Vegetable-tanned calf leather is the most versatile option for those who appreciate a developing patina over time.

To replace the strap on the Datejust 31, a suitable spring bar tool is required for the integrated Oyster lugs. Inserting the tool into the lateral groove of the lug compresses the spring bar, allowing the strap to be removed. Care must be taken not to scratch the yellow gold case: a spring bar tool with a teflon or nylon tip is recommended.

Yes. Any strap with a 16mm attachment is technically compatible with the Datejust 31 278248-0032. Milano Straps offers handcrafted straps made specifically for this lug width, available in leather, rubber, and nylon. It is essential that the measurement is precisely 16.0mm to ensure a secure, play-free attachment.

The lifespan of a leather strap depends on the type of leather and frequency of use. A quality alligator strap, with daily wear, typically lasts 2 to 4 years. Shell cordovan is more abrasion-resistant and can exceed 5 years. Vegetable-tanned calf leather degrades more quickly when exposed to moisture and perspiration. Casati Milano offers an 18-month warranty against manufacturing defects on all their straps.