Strap for Datejust 31 Rose Gold / Diamond / Rose - Roman / Oyster

The lug width of the Rolex Datejust 31 reference 278285rbr-0028 is 16mm. This measurement must be taken internally between the lug walls using a calliper — it is the clear internal distance that determines strap compatibility, regardless of the overall case diameter.

For the Datejust 31 in Everose gold, an alligator strap with vegetable tanning is the most coherent choice both aesthetically and technically. The belly grain harmonises with the texture of the dial and case. Shell cordovan is an excellent alternative for those who prefer a smooth surface with a natural patina. In both cases, a curved end profile matched to the case radius ensures a precise fit with no gap between leather and lug.

Strap replacement requires a double-ended springbar tool to remove the spring bars securing the strap to the lugs. It is advisable to work on a soft surface to protect the Everose case. The Datejust 31 lugs feature through-holes that simplify the operation. If fitting an original Oyster or Jubilee bracelet, the swap is performed via Rolex's EasyLink quick-release system, requiring no tools.

Yes. The compatibility parameter is the 16mm lug width, not the case diameter. Any strap with a 16mm attachment is dimensionally compatible. For the best fit, curved-end straps that follow the profile of the rose gold case are recommended, avoiding gaps between lug and strap. Milanostraps.it offers a selection of compatible 16mm straps both ready-to-wear and bespoke.

Longevity depends on the material and conditions of use. A quality vegetable-tanned alligator strap, used carefully and rotated with other straps, typically lasts between three and five years while retaining its shape and finish. Shell cordovan, due to the dense fibrous structure of the horse's corium layer, often lasts even longer, developing a distinguished patina over time. Prolonged perspiration and frequent contact with water shorten the lifespan of any leather strap; removal during high-humidity activities is strongly recommended.