Strap for Datejust 31 Yellow Gold / Domed / Champagne / Oyster

The lug width of the Rolex Datejust 31 278248-0039 is 16 millimetres. This measurement refers to the distance between the internal lugs of the case and is specific to the Datejust 31 model. To verify this dimension correctly, use a millimetre ruler positioned perpendicularly to the case attachment, measuring the internal width between the two lugs.

For the yellow gold Datejust 31, alligator leather represents the most aesthetically coherent choice: the reptile's natural grain and lustre echo the preciousness of the gold case. Alternatively, shell cordovan offers density and architectural sobriety, whilst calf leather provides versatility and daily comfort. The choice depends on intended use and personal preferences regarding patina and ageing characteristics.

Changing the strap on a Datejust 31 requires a specific tool known as a spring bar tool. Position the watch with the lugs facing upwards, insert the tool into the small hole located at the base of the lug to access the retaining spring, then press gently downwards to release the spring bar. Repeat the operation on both sides. We recommend entrusting this operation to a specialist craftsman if you lack the necessary technical expertise.

Yes, any strap manufactured with a 16mm lug width is mechanically compatible with the Datejust 31 278248-0039. However, compatibility does not guarantee aesthetic harmony: we recommend verifying that the thickness, material and colour tone of the strap are coherently matched to the case and dial. A bespoke strap crafted by an artisan ensures a seamless transition between case and wrist.

A leather strap crafted from noble materials (alligator, shell cordovan, vegetable-tanned calf) by a specialist artisan has an average lifespan of 4-7 years with daily wear, variable depending on frequency of wear, exposure to UV rays and ambient humidity. Longevity also depends on care: regularly cleaning the strap and storing it away from heat sources significantly prolong useful life. Many artisans offer reconditioning services to further extend strap lifespan.