Rolex · Lady-Datejust

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

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-0009
FamilyLady-Datejust
MovementRolex caliber 2236 Hours, Minutes, Seconds | Date | Chronometer
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-0009, seen from the bench

The Lady-Datejust 28 White Gold – Diamond is a refined women's timepiece from Rolex's iconic collection, featuring a 28mm white gold case with a diamond-set bezel and diamond indices. At its core beats the Rolex Caliber 2236, a Superlative Chronometer-certified movement with a silicon Syloxi balance wheel and approximately 55 hours of power reserve. The watch requires a specialized 14mm strap with curved geometry to properly fit the case lugs.

Frequently asked questions

What is the lug width of the Rolex Lady-Datejust 279139RBR-0009?

The Rolex Lady-Datejust 279139RBR-0009 has a lug width of 14mm. This is a non-standard measurement in the mass-market strap industry, so it is essential to select straps specifically produced for this format, ideally with pre-curved ends that match the lug geometry of this 28mm case.

What is the best strap for the Rolex Lady-Datejust 279139RBR-0009 in white gold?

For an 18-carat white gold case with a diamond-set bezel, a vegetable-tanned alligator strap is the most coherent choice: the symmetrical scale grain complements the texture of the Jubilee bracelet and enhances the cool white of the metal. Alternatively, semi-gloss smooth calfskin or shell cordovan offer distinct character. A 14mm white gold buckle or deployant clasp completes the pairing harmoniously.

How do you change the strap on a Rolex Lady-Datejust 28mm?

Replacing the strap on a Lady-Datejust 28mm requires a spring bar tool with a fine tip, given the narrow gap between the lugs. Remove the two spring bars by pressing on the inner lug seat, then insert the new strap using compatible 1.5mm diameter spring bars. Work on a soft surface to avoid scratching the white gold case and, if in doubt, consult a watchmaker or the Casati Milano atelier.

Are there aftermarket straps compatible with the Rolex Lady-Datejust 279139RBR-0009?

Yes, quality aftermarket straps are available for the Lady-Datejust 279139RBR-0009, provided they respect the 14mm lug width and feature curved ends suited to the geometry of the 28mm case. Milano Straps offers a curated selection of 14mm straps in alligator, calfskin and rubber, with buckles and deployant clasps available in various metals including white gold PVD finish.

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 wear. A quality vegetable-tanned alligator strap, worn daily and kept away from excessive water and perspiration, will maintain its structural and aesthetic integrity for 3 to 5 years. Calfskin has a similar lifespan but develops a patina more quickly. Rotating between two straps significantly extends the life of both. Casati Milano straps 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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Casati Milano · Via XX Settembre 15, Milan · by appointment only