Rolex · Lady-Datejust

Strap for Lady-Datejust 28 Everose Diamond / Jubilee / Sundust 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
Reference279135rbr-0004
FamilyLady-Datejust
MovementRolex caliber 2236 hours, minutes, seconds | date | chronometer
Year2015
CaseRose 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 279135rbr-0004, seen from the bench

The Lady-Datejust represents the feminine version of the classic Rolex Datejust, introduced for the first time in the 1950s. It mounts the automatic Caliber 2236 with chronometer certification and display of hours, minutes, seconds and date. The case has 14mm lugs, sized for the female wrist.

Frequently asked questions

What is the lug width of the Rolex Lady-Datejust 279135rbr-0004?

The Rolex Lady-Datejust 279135rbr-0004 has a lug width of 14mm. This measurement is specific to this reference and should be confirmed on the caseback before purchasing any aftermarket strap. It is best measured with a digital calliper inserted between the lugs, flush against the case.

What is the best strap for the Rolex Lady-Datejust 279135rbr-0004?

Given the Everose gold case and ruby-set bezel, a glossy alligator strap in bordeaux or cognac is the most coherent aesthetic choice. Shell cordovan in burgundy develops a natural patina over time that complements the warm tones of the gold. In either case, the buckle and keeper should be in rose gold or rose gold PVD to maintain visual consistency.

How do you change the strap on a Rolex Lady-Datejust 279135rbr-0004?

Strap replacement requires a spring bar tool with a 0.7–0.8mm tip. The original Rolex spring bars are stainless steel, 1.8mm in diameter. Always work on a soft surface to avoid scratching the Everose gold case. If in doubt, it is advisable to consult a watchmaker or the Casati Milano atelier.

Are there aftermarket straps compatible with the Rolex Lady-Datejust 279135rbr-0004?

Yes. Any strap with a 14mm lug width and standard spring bars is technically compatible. Milanostraps.it offers a curated selection of handcrafted 14mm straps in alligator, calf leather, shell cordovan and rubber, available bespoke or ready to ship online, with buckle options including rose gold PVD.

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

Longevity depends on the material and daily use. A quality alligator strap, kept away from prolonged exposure to water and perspiration, typically lasts 2–4 years. Shell cordovan, being denser and more resistant to surface moisture, can exceed 4–5 years. Casati Milano straps come with an 18-month production warranty.

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