Technical Archive

Rolex
Datejust 31 278273-0023— lug 16mm

Rolex Datejust 31 278273-0023: 16mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Datejust 31 Stainless Steel / Yellow Gold / Fluted / Black MOP / Oyster

Artisanal Note

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

Technical Specifications

Rolex 278273-0023
Lug Width
16 mm

The essential strap measurement.

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Reference

278273-0023

Movement

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

The Heritage

The Datejust 31 represents the female version of the Rolex Datejust collection. It is equipped with the automatic Caliber 2236 with hour, minute, second and date functions, certified as a chronometer. The case measures 31mm with 16mm lugs, reference 278273-0023.

FAQ

What is the lug width of the Rolex Datejust 31 278273-0023?

The Rolex Datejust 31 278273-0023 features a 16-millimetre lug width. This measurement is specific to Datejust 31 models in steel and yellow gold (Rolesor) and ensures constructive compatibility with the 31mm case and fixed lugs of the original bracelet.

What strap is recommended for the Datejust 31 278273-0023?

For a Datejust 31 278273-0023 with mother-of-pearl dial, an alligator strap in cognac tones or vegetable-tanned leather in warm shades (beige, tobacco) are ideal. Both materials evolve over time, developing patina whilst maintaining aesthetic coherence with the yellow gold bimetallic case.

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

The strap is replaced by removing the spring bars from the case lugs. Position the watch on a soft support, insert a spring bar tool into the lateral slot and push gently inward whilst extracting the visible end. Align the new strap holes with the lug position and allow the spring bar to reposition automatically.

Can I use an aftermarket strap on the Datejust 31 278273-0023?

Yes, provided the lug width is 16 millimetres. High-quality artisanal aftermarket straps are fully compatible with the Datejust 31 and allow aesthetic variation without compromising functionality. We recommend verifying the lug width physically before ordering.

How long does a leather strap last on a daily-worn watch?

A quality leather strap (alligator, vegetable-tanned calf) typically lasts 3–5 years under daily wear. Longevity depends on sun exposure, environmental humidity and cleaning frequency. Vegetable-tanned leather ages visibly, developing patina: this is not a defect, but evidence of authentic wear.

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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