Strap for Datejust 31 Rose Gold / Fluted / Aubergine - Roman / Oyster

The Rolex Datejust 31 ref. 278275-0028 has a lug width of 16mm. This measurement, specific to the 31mm intermediate format of the Datejust family, should be taken using a digital calliper placed between the two lugs in contact with the case. Respecting this dimension precisely is essential to ensure a secure fit with no lateral play.

For an Everose gold case in the 31mm format, vegetable-tanned alligator leather is the most coherent choice both aesthetically and technically: the bombé grain complements the fluted bezel, and the leather develops a unique patina over time. Shell cordovan is an excellent alternative for those who prefer a denser, smoother surface. In both cases, the lug width must be exactly 16mm.

Changing the strap on the Datejust 31 requires a dedicated lug screw tool or a springbar tool to remove the spring bars securing the bracelet or strap to the case lugs. Work on a soft surface to protect the Everose gold case from accidental scratches. If in doubt, it is advisable to consult a watchmaker or the Casati Milano atelier.

Yes. The aftermarket offers leather, rubber and textile straps with a 16mm lug width compatible with the Datejust 31 278275-0028. Milano Straps carries a dedicated collection in this size, handcrafted from selected materials including alligator, calfskin and shell cordovan. Always verify that the lug width is 16mm and that the attachment profile suits the Rolex case geometry.

A quality leather strap — alligator or vegetable-tanned shell cordovan — fitted to a Rolex Datejust 31 typically lasts 2 to 4 years with daily wear, depending on exposure to perspiration, water and UV light. Proper care (avoiding prolonged water contact, applying a leather conditioner every 3–4 months) can significantly extend its lifespan. Milano Straps provides an 18-month guarantee against manufacturing defects.