Strap for Datejust 31 Stainless Steel Fluted / Jubilee / Pink - Roman

The Rolex Datejust 31 reference 278274-0020 has a lug width of 16mm. This measurement should be taken with a digital calliper positioned between the lugs at the strap attachment point, not along the external case length. This is a specific dimension requiring straps manufactured to 16mm specifications to ensure correct fitting and proportionally coherent aesthetics.

For the Datejust 31 278274-0020 in white Rolesor, a glossy alligator strap (midnight blue, slate grey or ivory white) offers the most coherent pairing with the diamond-set bezel's jewellery register. Vegetable-tanned calf leather is preferable for everyday use, while shell cordovan offers superior surface compactness and durability. A steel or 18-carat white gold buckle or deployant clasp completes the combination, echoing the original case metals.

To replace the strap on a Datejust 31, the spring bars connecting the strap to the case lugs must be removed. A dedicated springbar tool with a fine tip is inserted into the hole on the lug to compress the spring and release the bar. Care must be taken to avoid scratching the white gold lugs or the steel case. If in doubt, it is advisable to consult a watchmaker or specialist atelier.

Yes, high-quality aftermarket straps compatible with the Datejust 31 278274-0020 are available. It is essential that the attachment width is exactly 16mm and that the spring bars are standard 1.5mm diameter. MilanoStraps offers a selection of 16mm straps in alligator, calf leather, shell cordovan, rubber and nylon, crafted to fit the Oyster lug profile of this reference.

The lifespan of a leather strap depends on the material, care and frequency of use. A quality alligator strap, kept away from water and intense perspiration, can last between 3 and 5 years while retaining an excellent appearance. Vegetable-tanned calf develops a patina over time but is more susceptible to moisture. Shell cordovan, owing to its compact structure, offers the greatest resistance to deformation. Rotating between two straps significantly extends the life of both.