Strap for Datejust 31 Rolesor Yellow Fluted Diamond / Oyster / MOP

The Rolex Datejust 31 reference 178313-0032 has a lug width of 16mm. This measurement, taken between the two case lugs at the springbar contact point, is the specification required when selecting any compatible aftermarket strap.

For a Datejust 31 with a mother-of-pearl dial and yellow Rolesor case, a vegetable-tanned alligator strap with gold stitching or a smooth calf leather strap in warm tones (cognac, honey, burgundy) best complements the dial's aesthetic. A tapered profile with a heel thickness of 3.5mm to 4mm suits the proportions of the 31mm case.

The original strap is secured to the lugs via 16mm springbars. To replace it, use a double-pronged springbar tool: compress the springbar spring by acting on the lug slots, remove the strap, and reverse the process to fit the new one. Always work on a soft surface to avoid scratching the case.

Yes. Milanostraps.it offers a curated range of handcrafted 16mm straps compatible with the Datejust 31. Available in alligator, calf leather, shell cordovan and other materials, with traditional buckle or deployant clasp, each strap is tailored to the model's specific lug curve and pitch.

Longevity depends on material and use. A quality alligator strap, properly maintained and stored, can retain structural integrity for 3 to 5 years with regular wear. Calf leather tends to show wear earlier, particularly at the keeper loop. Casati Milano straps carry an 18-month warranty against manufacturing defects.