Strap for Datejust 31 White Gold Fluted / President / Pink Diamond

The Rolex Datejust 31 ref. 178279-0036 has a lug width of 16mm. This measurement is taken with a digital calliper at the inner gap between the two lugs at the point where the strap attaches to the case. It is a specific dimension that is not compatible with 18mm or 20mm straps.

For an 18-carat white gold case, polished alligator with Louisiana grain is the most coherent choice for formal occasions, as its natural texture complements the cold brilliance of the metal. Box calf leather in vegetable-tanned hide is recommended for daily wear with an evolving patina, whilst shell cordovan offers outstanding resistance to deformation over time. All options must feature a 16mm attachment.

The Datejust 31 strap is secured to the lugs via 16mm spring bars. To remove it, use a dedicated springbar tool, inserting it into the lateral slot of the lug to compress the spring bar and release the strap. Care should be taken to avoid scratching the white gold case: it is advisable to protect the lugs with masking tape before proceeding.

Yes. Any strap with a 16mm attachment and standard spring bars is compatible with the Datejust 31 178279-0036. Milano Straps offers handcrafted straps in leather, shell cordovan, alligator, and technical materials with a 16mm lug width, finished to a standard befitting a watch of this calibre. The quality of the spring bars and the rigidity of the attachment end are critical parameters for both safety and longevity.

Longevity depends on the material, usage, and maintenance. A quality alligator strap, kept away from perspiration and moisture, typically lasts 2–4 years with daily wear. Vegetable-tanned calf leather may last 1–3 years, developing a characteristic patina. Shell cordovan, owing to its dense fibre structure, can exceed 4–5 years. Casati Milano offers an 18-month guarantee against manufacturing defects on all bespoke straps.