Strap for Datejust 31 Stainless Steel Diamond / Jubilee / Silver

The Rolex Datejust 31 278384rbr-0016 has a lug width of 16mm. This measurement is taken internally between the two lugs at the point of contact with the case and does not correspond to the overall bezel width. A digital calliper is recommended to verify the dimension before purchasing an aftermarket strap.

For the bi-material case in Oystersteel and white gold of the 278384rbr-0016, a 16mm glossy alligator strap is the most coherent choice for formal occasions. Vegetable-tanned shell cordovan is ideal for refined daily wear, developing a unique patina over time. For sport or outdoor use, vulcanised rubber ensures durability and moisture resistance.

To remove the original strap from the Datejust 31, a spring bar tool is required. The 16mm spring bars are located within the case lugs; compressing the spring-loaded tips releases them from the lug holes. It is advisable to work on a soft surface to avoid scratching the white gold and steel case. Spring bars are included with all Casati Milano straps.

Yes. Any strap with a 16mm lug width and standard spring bars is compatible with the Datejust 31 278384rbr-0016. Milano Straps offers a selection of handcrafted straps in various materials — alligator, calf leather, shell cordovan, rubber, NATO — available bespoke or ready to purchase online, all supplied with spring bars.

The lifespan of a leather strap depends on the material, maintenance and frequency of use. A quality alligator strap, kept away from water and perspiration, can last between three and seven years. Vegetable-tanned shell cordovan is particularly durable and tends to improve with age through natural patina development. All Casati Milano straps carry an 18-month manufacturing guarantee.