Rolex · Lady-Datejust

Strap for Lady-Datejust 28 Platinum Diamond / President / Dark 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
Reference279136rbr-0009
FamilyLady-Datejust
MovementRolex caliber 2236 hours, minutes, seconds | date | chronometer
Year2015
CasePlatinum

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 279136rbr-0009, seen from the bench

The Rolex Lady-Datejust 28 Platinum Diamond 279136RBR-0009 features a 28mm Oyster case in 950 platinum with brilliant-cut diamond bezel and dark grey dial, powered by the automatic Rolex caliber 2236 with silicon Syloxi balance wheel and COSC certification. The 14mm lug width is precisely specified for this model and requires a shaped caseback respecting the Oyster lug curvature. Water-resistant to 100 meters, the Lady-Datejust family combines the date window with Cyclops lens at 3 o'clock, a signature element since 1945.

Frequently asked questions

What is the lug width of the Rolex Lady-Datejust 279136RBR-0009?

The Rolex Lady-Datejust 279136RBR-0009 has a lug width of 14mm. This measurement is specific to the 28mm case variant and is not interchangeable with straps designed for the 36mm or 41mm Datejust references. Always verify with a digital calliper before purchasing a replacement strap.

What is the best strap for the Rolex Lady-Datejust 279136RBR-0009?

For a platinum 950 case set with a diamond bezel, the most appropriate materials are belly alligator in neutral tones (slate grey, midnight blue, ivory white) or smooth vegetable-tanned calf leather. Rubber is preferable for sporting or warm-weather use. A steel or platinum deployant clasp is recommended to extend the lifespan of a leather strap.

How do I change the strap on a Rolex Lady-Datejust 279136RBR-0009?

The strap is removed using a spring bar tool, carefully leveraging the spring bar within the lug channel. Work on a soft surface to avoid scratching the platinum case. Alternatively, any qualified watchmaker or the Casati Milano atelier can perform the swap in a matter of minutes.

Are there aftermarket straps compatible with the Rolex Lady-Datejust 279136RBR-0009?

Yes. The aftermarket offers high-quality straps compatible with the 14mm lug width of the 279136RBR-0009. It is essential that the strap features a curved end to match the Oyster case profile. Milano Straps offers a curated selection of handcrafted 14mm straps tailored to this specific reference.

How long does a leather strap last on a Rolex Lady-Datejust 279136RBR-0009?

The lifespan of a leather strap depends on the material and conditions of use. A quality alligator strap, kept away from prolonged water and perspiration exposure, typically lasts between two and four years. Vegetable-tanned calf and shell cordovan develop a fine patina over time while offering excellent durability. Casati Milano straps come with an 18-month production defect 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