Strap for Datejust 31 Yellow Gold Diamond / Oyster / Black

The Rolex Datejust 31 reference 178288-0075 has a lug width of 16mm. This measurement is specific to the Datejust 31 family and should be verified with a digital calliper between the inner lug surfaces before purchasing any aftermarket strap.

For an 18-carat yellow gold case, the most suitable materials are glossy alligator in cognac or caramel tones, vegetable-tanned calf leather for those seeking a natural patina over time, and shell cordovan for maximum durability and a compact grain. A yellow gold buckle or deployant clasp ensures metallic consistency.

Changing the strap on the Datejust 31 requires a dedicated spring bar tool. The 1.5mm spring bars must be removed carefully to avoid scratching the gold lugs. It is advisable to entrust this operation to a watchmaker or the Casati Milano atelier to prevent damage to the lug surfaces.

Yes. The Datejust 31 178288-0075 with its 16mm lug width is compatible with handcrafted aftermarket straps specifically shaped for this measurement. Milano Straps offers a selection of 16mm straps in various materials, crafted with tapered ends designed to fit Rolex lugs with precision.

Longevity depends on the material and frequency of use. A quality alligator strap, with moderate daily use and rotation between straps, typically lasts 3–5 years. Shell cordovan can exceed 5 years. Vegetable-tanned calf develops patina over time but is more sensitive to moisture. Keeping the strap away from water and perfume significantly extends its lifespan.