Strap for Datejust 31 Rolesor Yellow Domed Diamond / Jubilee / Black Diamond

The lug width of the Rolex Datejust 31 178343-0024 is exactly 16 millimetres. This dimension is specific to this model and determines compatibility with aftermarket straps. To verify, measure the internal distance between the two lugs on the case where the strap attaches; the value must correspond precisely to 16 mm.

For the Datejust 31 178343-0024, alligator with vegetable tanning represents the most balanced choice: the fine hexagonal grain naturally complements the two-tone case, whilst the patina that develops over time creates a rich texture. Barleycorn grain calfskin offers elegant alternatives for those preferring a uniform surface. For a sportier aesthetic, heavyweight canvas NATO with silk offers breathability and durability.

Remove the strap using a spring bar remover: insert the tool's tip into the lateral slots of the case lugs to compress the internal springs. Once released, the strap removes easily. For installation of the new strap (16 mm lug width), reinsert the spring bars into the new strap, compress and guide into the case lugs until mechanical seating.

Yes, any strap with a 16 mm lug width is compatible. Quality aftermarket straps (in alligator, calfskin, NATO) maintain the aesthetic and functional standards of the Datejust 31, provided they are built with precision and fine materials. Ensure the thickness does not exceed 4.5 mm to preserve the visual harmony of the 31 mm case.

A quality leather strap, with vegetable or fine animal tanning, lasts on average 2-4 years with daily use and proper maintenance. Longevity depends on exposure to moisture, perspiration, UV rays and cleaning frequency. Alligator straps tend to last longer due to fibre density; calfskin straps require greater care but develop fascinating patinas.