Technical Archive

Rolex
Lady-Datejust 279381rbr-0022— lug 14mm

Rolex Lady-Datejust 279381rbr-0022: 14mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Lady-Datejust 28 Rolesor Rose Diamond / Oyster / White Roman

Artisanal Note

"This model requires a precise 14mm lug width to preserve the original sartorial balance."

Technical Specifications

Rolex 279381rbr-0022
Lug Width
14 mm

The essential strap measurement.

Browse 14mm straps →
Reference

279381rbr-0022

Movement

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

The Heritage

The Lady-Datejust 28 Rolesor Rose Diamond (ref. 279381rbr-0022) combines Everose Gold with Oystersteel 904L in a 28mm case featuring a diamond-set bezel and Roman numeral dial. Powered by the Caliber 2236 movement beating at 28,800 vph with Syloxi silicon hairspring and COSC chronometer certification (−2/+2 seconds/day), it offers water resistance to 100m via Twinlock crown. The 14mm strap width is specifically engineered for this model's proportioned lugs without lateral play or pressure on gold components.

FAQ

What is the lug width of the Rolex Lady-Datejust 279381rbr-0022?

The Rolex Lady-Datejust 279381rbr-0022 features a lug width of 14mm. This is a non-standard measurement within the aftermarket strap industry, requiring dedicated tooling and production. Before ordering a compatible strap, we recommend verifying the lug width using a digital calliper placed between the two spring bar holes on the inside of the lugs.

What is the best strap for the Rolex Lady-Datejust 279381rbr-0022?

For the Lady-Datejust 279381rbr-0022 in Everose Gold and Oystersteel, the most suitable materials are vegetable-tanned alligator — ideally in cognac, burgundy or bottle green — and shell cordovan for those seeking maximum durability and progressive patina. Smooth calf leather in burgundy or navy is a more everyday alternative. In all cases, the strap attachment width must be precisely 14mm to ensure a correct fit within the lugs.

How do you change the strap on a Rolex Lady-Datejust 279381rbr-0022?

Replacing the strap on the Lady-Datejust 279381rbr-0022 requires a fine-tipped spring bar tool to remove the 14mm spring bars securing the strap to the lugs. It is advisable to work on a padded surface to protect the Oystersteel case and Everose Gold components from scratches. Alternatively, a qualified watchmaker or the Casati Milano atelier can perform the swap safely.

Are there aftermarket straps compatible with the Rolex Lady-Datejust 279381rbr-0022?

Yes. milanostraps.it offers a selection of aftermarket straps made specifically for the 14mm lug width, compatible with the Rolex Lady-Datejust 279381rbr-0022. Available materials include alligator, calf leather, shell cordovan and vulcanised rubber. For bespoke commissions with individual leather and buckle selection, the Casati Milano made-to-order service is available.

How long does a leather strap last on a Rolex Lady-Datejust?

The lifespan of a leather strap depends on the material and maintenance. A conventional calf leather strap, with daily wear, typically lasts 1–3 years. Shell cordovan, owing to its dense fibre structure, can last 5–10 years while developing a distinctive patina. Vegetable-tanned alligator falls in between: 3–6 years with periodic conditioning using non-aggressive creams. Avoiding prolonged contact with water and perspiration significantly extends strap longevity.

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