Rolex · Lady-Datejust
Strap for Lady-Datejust 28 Stainless Steel / Diamond / Grey - Diamond / Jubilee
Takes 14 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
The Lady-Datejust 279384rbr-0017, seen from the bench
Frequently asked questions
What is the lug width of the Rolex Lady-Datejust 279384rbr-0017?
The Rolex Lady-Datejust 279384rbr-0017, housing a 28mm case, features a lug width of 14mm. This is a non-standard measurement in the general aftermarket: virtually all replacement straps must be specifically produced or selected for this attachment width. The correct method to verify compatibility is to measure with a vernier calliper placed between the lugs, in direct contact with the bar seat inside the horn.
What is the best strap for the Rolex Lady-Datejust 279384rbr-0017?
For the Lady-Datejust 279384rbr-0017 with a diamond-set bezel and mother-of-pearl dial, a smooth porosus alligator strap — in midnight blue, bordeaux, or gloss black — represents the most aesthetically coherent choice. Shell cordovan is the preferred alternative for those seeking a progressive patina and a compact, burnished surface. In both cases, a 14mm attachment width with a deployant clasp in white gold or brushed steel completes the pairing.
How do you change the strap on a Rolex Lady-Datejust 279384rbr-0017?
Removing the original bracelet or strap from the Lady-Datejust requires a fine-tipped spring bar tool inserted into the milled slot on the Oyster lugs. The 14mm spring bar must be compressed laterally to disengage from the lug hole. The operation requires care: excessive pressure or unsuitable tools may scratch the polished or satin finish on the lugs. As an alternative, a watchmaker or the Casati Milano atelier can perform the swap safely.
Are there aftermarket straps compatible with the Rolex Lady-Datejust 279384rbr-0017?
Yes. The 14mm lug width is supported by specialist artisan manufacturers. Milano Straps and the Casati Milano atelier produce bespoke and semi-ready straps specifically dimensioned for the 14mm Lady-Datejust 28mm. The strap length (typically 95/75mm for a standard women's fit) and the profile of the attachment end must be verified against the Oyster lug geometry to ensure a correct seating between the horns.
How long does a leather strap last on a Rolex Lady-Datejust 279384rbr-0017?
The lifespan of a leather strap depends on the quality of the hide, frequency of wear, and exposure to perspiration and moisture. A hand-crafted alligator or shell cordovan strap with a goatskin lining and hand-stitched seams typically lasts 3 to 5 years with daily wear. Vegetable-tanned leather responds well to conditioning creams, significantly extending its useful life. Milano Straps provides an 18-month manufacturing defect warranty on all Casati Milano straps.
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.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only

