Rolex · Lady-Datejust

Strap for Lady-Datejust 28 White Gold - Diamond / President / Grey - Diamond

Takes 14 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width14 mm
Case diameter28 mm
Reference279139RBR-0011
FamilyLady-Datejust
MovementRolex caliber 2236 hours, minutes, seconds | date | chronometer
Year2022
CaseWhite Gold

Recommended spring bar

Spring bars Rolex Lady-Datejust 14mm — 1.5mm diameter

Technical match for lug width and diameter · lug 14 mm · Ø 1.5 mm

All Rolex spring barsOpen →

The Lady-Datejust 279139RBR-0011, seen from the bench

The Lady-Datejust 279139RBR-0011 is a 28mm white gold model with diamond-set bezel and Rolex caliber 2236 automatic movement certified COSC. The Oyster case features a screw-down crown and caseback, water-resistant to 100 meters, with a 3 o'clock date window and Cyclops lens. The 14mm lug width is specific to this reference and requires precise measurement before purchasing a replacement strap. The white gold case pairs best with Mississippi alligator or shell cordovan straps in comparable materials.

Frequently asked questions

What is the lug width of the Rolex Lady-Datejust 279139RBR-0011?

The lug width of the Rolex Lady-Datejust 279139RBR-0011 is 14mm. This specific measurement is directly related to the 28mm case diameter. Before purchasing an aftermarket strap, it is advisable to verify the internal distance between the lugs using a digital calliper to rule out minor assembly variations.

What is the best strap for the Rolex Lady-Datejust 279139RBR-0011?

For an 18-carat white gold case with a pavé diamond bezel, a smooth-belly Mississippiensis alligator strap is the most technically coherent choice: the symmetrical grain echoes the watchmaking craftsmanship. Shell cordovan develops a dense patina over time that complements the precious materials. Both options are available in 14mm lug width on milanostraps.it.

How do I change the strap on a Rolex Lady-Datejust 279139RBR-0011?

Strap replacement requires a fine-tipped spring bar tool inserted into the slot located inside each lug. By pressing the spring bar pin inward, the strap releases. The operation should be carried out on a soft surface to avoid scratching the white gold case. For a risk-free swap, it is preferable to rely on a watchmaker or the Casati Milano atelier.

Are there aftermarket straps compatible with the Rolex Lady-Datejust 279139RBR-0011?

Yes. Aftermarket straps with a 14mm lug width are compatible with the Rolex Lady-Datejust 279139RBR-0011, provided the spring bars are of the correct diameter for Rolex lug slots. Milano Straps offers a selection of handcrafted 14mm straps — alligator, calf, shell cordovan, rubber — finished to a standard consistent with the quality of the watch.

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

The lifespan of a leather strap depends on the material and frequency of use. A quality alligator strap with vegetable tanning and calf inner layers typically lasts 3–5 years with regular wear. Shell cordovan can exceed 5 years while developing patina without structural degradation. Wear concentrates on the keeper and the wrist-bend area; periodic treatment with neutral wax significantly extends the strap's service life.

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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Casati Milano · Via XX Settembre 15, Milan · by appointment only