Rolex
Datejust 31 278343rbr-0014— lug 16mm

The lug width of the Rolex Datejust 31 ref. 278343rbr-0014 is 16mm. This measurement is taken on the inside of the Oyster case lugs at their narrowest point and determines compatibility with replacement straps. A digital calliper is recommended for an accurate reading.

Given the two-tone steel and yellow gold case of the Datejust 31 278343rbr-0014, the most suitable materials are alligator leather in warm tones (cognac, honey, burgundy) and shell cordovan with a glossy finish. Both complement the gold elements without overpowering the original aesthetic. Vegetable-tanned calf leather is the most versatile option for everyday wear.

To replace the strap on the Datejust 31, remove the 16mm spring bars using a dedicated springbar tool. Always work on a soft surface to protect the bezel and case. Alternatively, a watchmaker or the Casati Milano atelier can carry out the fitting professionally, with no risk to the Oyster case.

Yes. Aftermarket straps with a 16mm lug width are compatible with the Rolex Datejust 31 278343rbr-0014, provided they meet the tolerance requirements of the Oyster case. Milanostraps.it offers a curated selection of handcrafted 16mm straps in various materials, designed to fit the lugs of this model precisely.

The lifespan of a leather strap on the Datejust 31 depends on the material and conditions of use. A quality alligator strap, kept away from water and excessive perspiration, typically lasts between two and four years with daily wear. Shell cordovan, owing to its dense fibre structure, tends to last longer and develops a distinctive patina over time. Casati Milano's handcrafted straps come with an 18-month warranty against manufacturing defects.