Rolex
Datejust 31 278274-0001— lug 16mm

The Rolex Datejust 31 reference 278274-0001 has a lug width of 16mm. This measurement refers to the internal distance between the horizontal lugs of the case and is the key parameter for selecting a compatible aftermarket strap. It is a specific size that does not match the lug width of the Datejust 36mm or 41mm variants.

For the Datejust 31 278274-0001 in steel and white gold, an alligator strap with vegetable tanning is the most formally coherent choice, as the belly grain complements the fluted bezel. Shell cordovan is an elegant alternative for those who prefer a smooth surface. Both options must be fitted to the specific 16mm lug width of this model.

To replace the strap on a Rolex Datejust 31, a spring bar tool is required. The spring bars connecting the strap to the case lugs are compressed laterally to allow removal. Care must be taken to avoid scratching the steel or white gold lugs during the operation. If in doubt, it is advisable to consult a watchmaker or a specialist atelier.

Yes, high-quality aftermarket straps compatible with the Rolex Datejust 31 278274-0001 are available. The essential parameter is the 16mm lug width. Milano Straps offers a selection of handcrafted straps in various leathers and materials, available bespoke or ready to order online, all fitted to this specific 16mm attachment.

The lifespan of a leather strap depends on the material, the quality of the tanning process, and daily use. A hand-crafted alligator strap with vegetable tanning can last between 3 and 6 years with standard care, avoiding prolonged exposure to water and perspiration. Shell cordovan tends to last even longer due to the compactness of its fibres. Replacing the buckle or deployant clasp does not affect the lifespan of the strap itself.