Rolex
Datejust 31 278274-0009— lug 16mm
Rolex Datejust 31 278274-0009: 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 278274-0009The essential strap measurement.
Browse 16mm straps →278274-0009
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 ref. 278274-0009?
The lug width of the Rolex Datejust 31 ref. 278274-0009 is 16mm. This measurement is taken with a calliper positioned between the two lugs at their narrowest internal point, where the strap sits. It is important not to confuse this dimension with that of the Datejust 36 (20mm) or the Lady-Datejust 28 (13mm).
What is the best strap for the Rolex Datejust 31 278274-0009?
For the Datejust 31 278274-0009 in Oystersteel and white gold, a polished alligator strap in black or midnight blue enhances the precious character of the bezel. Shell cordovan is preferable for those seeking durability and progressive patina. Vegetable-tanned calfskin offers a more everyday option with excellent texture. In all cases, the correct width is 16mm, and a deployant clasp in steel or white gold improves visual symmetry.
How do you change the strap on a Rolex Datejust 31?
To replace the strap on the Datejust 31, the spring bars securing the original bracelet or strap to the lugs must be removed. A dedicated springbar tool is used, inserting the tip into the lug hole to compress the spring and release the bar. Care must be taken to avoid scratching the steel case. The new 16mm strap is inserted in the same position, ensuring both spring bars are correctly locked into the lugs on either side.
Are there aftermarket straps compatible with the Rolex Datejust 31 278274-0009?
Yes, numerous aftermarket straps are compatible with the Datejust 31, provided they feature a 16mm lug width. Milano Straps offers handcrafted straps in alligator, shell cordovan, calfskin and rubber, fitted with standard 1.8mm spring bars compatible with the Oyster lugs of this reference. An original Rolex bracelet is not required: Italian artisan quality can match or exceed factory finishing.
How long does a leather strap last on a Rolex Datejust 31?
The lifespan of a leather strap depends on the material and care taken. A quality alligator strap worn daily and kept away from excess moisture or perspiration typically lasts 2–4 years. Shell cordovan, thanks to its denser fibre structure, can exceed 4–5 years. Vegetable-tanned calfskin has a shorter life (1–3 years) but ages with considerable aesthetic character. Casati Milano straps are covered by an 18-month production defect guarantee.
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