Technical Archive

Rolex
Datejust 31 278241-0024— lug 16mm

Rolex Datejust 31 278241-0024: 16mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Datejust 31 Stainless Steel/ Rose Gold / Domed / Rose - Diamond / Jubilee

Artisanal Note

"This model requires a precise 16mm lug width to preserve the original sartorial balance."

Technical Specifications

Rolex 278241-0024
Lug Width
16 mm

The essential strap measurement.

Browse 16mm straps →
Reference

278241-0024

Movement

Rolex caliber 2236 Hours, Minutes, Seconds | Date | Chronometer

The Heritage

The Rolex Datejust 31 ref. 278241-0024 is a 31mm sports-elegant watch combining Oystersteel and Everose gold 18k with a mother-of-pearl dial and gold indices. It features the Rolex Caliber 2236 movement with Syloxi balance wheel, approximately 55 hours power reserve, and COSC chronometer certification (−2/+2 seconds/day). The Oyster case measures 31.00mm in diameter with 100m water resistance via Twinlock crown. It includes hours, minutes, seconds, and date display via 2.5x Cyclops lens at 3 o'clock. Lug width is 16mm.

FAQ

What is the lug width of the Rolex Datejust 31 278241-0024?

The Rolex Datejust 31 ref. 278241-0024 has a lug width of 16mm. This is the correct measurement to use when selecting any aftermarket strap compatible with this reference.

What is the best strap for the Rolex Datejust 31 278241-0024?

For the Datejust 31 278241-0024 in Oystersteel and Everose gold, a vegetable-tanned alligator strap in cognac or tobacco tones is the most coherent choice aesthetically. Box calf leather and shell cordovan are strong alternatives for those who prefer a tighter, more refined grain. A deployant clasp in rose gold ensures maximum formal consistency with the case materials.

How do I change the strap on a Rolex Datejust 31 278241-0024?

Strap replacement on the Datejust 31 is carried out using standard 16mm spring bars. A dedicated spring bar tool and a watch cushion are recommended to avoid scratching the Everose gold case. Alternatively, the operation can be performed at the Casati Milano atelier during a scheduled appointment.

Are there aftermarket straps compatible with the Rolex Datejust 31 278241-0024?

Yes. Any strap with a 16mm lug width is technically compatible with the Rolex Datejust 31 278241-0024. Milano Straps offers a dedicated selection of 16mm straps in various materials — alligator, calf leather, shell cordovan, NATO, and rubber — all crafted with end-pieces precisely cut to the declared lug width.

How long does a leather strap last on a Rolex Datejust 31?

Strap longevity depends on the material, tanning method, and frequency of wear. A quality vegetable-tanned alligator strap, with standard care, typically lasts between 2 and 4 years under regular daily use. Shell cordovan, due to its dense, compact structure, tends to last considerably longer. Milano Straps products carry an 18-month warranty against manufacturing defects.

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.

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The atelier's website: casatimilano.com