Rolex
Datejust 31 278248-0034— lug 16mm
Rolex Datejust 31 278248-0034: 16mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 16mm lug width to preserve the original sartorial balance."
Technical Specifications
Rolex 278248-0034The essential strap measurement.
Browse 16mm straps →278248-0034
Rolex caliber 2236 Hours, Minutes, Seconds | Date | Chronometer
The Heritage
Compatible Straps
Selected for the 16mm lug width of the Datejust 31
FAQ
What is the lug width of the Rolex Datejust 31 278248-0034?
The Rolex Datejust 31 reference 278248-0034 has a lug width of 16mm. This measurement is specific to the 31mm case size and differs from the 20mm lugs of the Datejust 41 or the 19mm lugs found on certain vintage references. To verify the measurement on your own piece, use a calliper between the lugs parallel to the case, measuring at the inner face.
What is the best strap for the Datejust 31 278248-0034 in yellow gold?
For an 18-carat yellow gold case, an alligator strap in vegetable-tanned leather in dark chocolate, bordeaux or black provides the most coherent aesthetic pairing. The square belly grain of alligator develops a patina over time that complements the warm metal tones. Shell cordovan is a high-end alternative for those who prefer a smoother, more lustrous texture.
How do you change the strap on a Rolex Datejust 31?
The strap on the Datejust 31 is removed using a springbar tool inserted into the small hole on the lug. The springbar spring is compressed inward on both sides to release it from the lugs. The operation does not require opening the case and does not void the warranty if carried out correctly without scratching the surfaces. A watch cushion is recommended to protect the case during the replacement.
Are there aftermarket straps compatible with the Datejust 31 278248-0034?
Yes. Aftermarket straps with a 16mm lug width are produced by several artisan workshops, including Casati Milano, which crafts bespoke straps specifically for this format. It is essential to verify that the strap explicitly states compatibility with 16mm lugs and that the curved ends are shaped to fit the 31mm Oyster case. The models listed online on milanostraps.it for 16mm lugs are already curated for this compatibility.
How long does a leather strap last on a Rolex Datejust 31?
The lifespan of a leather strap depends on the material and daily use. A quality vegetable-tanned alligator strap, used with care and rotated with a second strap, can last between 3 and 5 years while maintaining a dignified patina. Shell cordovan is notably more resistant to deformation over time. Frequent exposure to water, perspiration and perfume accelerates the degradation of any leather: for intensive or sporting use, a vulcanised rubber strap is recommended.
The next step
The right strap isn’t chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →By appointment only · Milan
The atelier's website: casatimilano.com