Rolex · Lady-Datejust

Strap for Lady-Datejust 28 Yellow Gold Diamond / President / Silver Roman

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
Reference279138rbr-0017
FamilyLady-Datejust
MovementRolex caliber 2236 Hours, Minutes, Seconds | Date | Chronometer
CaseYellow 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 279138rbr-0017, seen from the bench

The Lady-Datejust represents the female version of Rolex's Datejust collection, characterized by reduced dimensions and refined finishes. It features the automatic Caliber 2236 with official chronometer certification and functions for hours, minutes, seconds and date. The case has 14mm lugs, designed to fit slimmer wrists.

Frequently asked questions

What is the lug width of the Rolex Lady-Datejust 279138rbr-0017?

The Rolex Lady-Datejust 279138rbr-0017 has a lug width of 14 mm. This measurement is specific to the Lady format with a 28 mm case diameter and requires straps produced to this exact width to ensure a correct fit and proportionate appearance on the wrist.

What is the best strap for the Lady-Datejust 279138rbr-0017 in yellow gold?

For an 18 ct yellow gold case, a vegetable-tanned alligator strap in burgundy, cognac or bottle green tones best complements the precious metal. Alternatively, natural shell cordovan develops a patina over time that pairs exceptionally well with the warm luminosity of yellow gold. For sport or summer use, a grained rubber strap in 14 mm is recommended.

How do I change the strap on the Rolex Lady-Datejust 279138rbr-0017?

To replace the strap, a double-ended spring bar tool is required to remove the spring bars securing the strap to the case lugs. It is advisable to work on a soft surface to protect the gold case. If you are not experienced with this procedure, it is preferable to entrust the task to a watchmaker or the Casati Milano atelier to avoid scratching the lugs.

Are there aftermarket straps compatible with the Lady-Datejust 279138rbr-0017?

Yes. Any strap with a 14 mm attachment and standard spring bars is technically compatible with the Lady-Datejust 279138rbr-0017. Milano Straps offers a selection of handcrafted straps in leather, alligator, shell cordovan and rubber in this width, available bespoke or online in the standard format for 28 mm cases.

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

The lifespan of a leather strap depends on the quality of the tanning and daily use. A superior vegetable-tanned alligator strap, with proper care — conditioning cream every 3 to 6 months and rotation with other straps — can last between 3 and 7 years whilst retaining its structural and aesthetic integrity. Prolonged contact with water and perspiration is the primary cause of premature deterioration.

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