Rolex · Lady-Datejust
Strap for Lady-Datejust 28 Stainless Steel / Diamond / MOP / Oyster
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-0012, seen from the bench
Frequently asked questions
What is the lug width of the Rolex Lady-Datejust 279384rbr-0012?
The lug width of the Rolex Lady-Datejust 279384rbr-0012 is 14mm. This measurement refers to the internal distance between the two lugs of the case and is the key parameter for selecting a compatible strap. It is a non-standard size compared to the more common formats on the market (18mm, 20mm), so it is essential to ensure that any chosen strap is specifically made or trimmed to 14mm.
What is the best strap for the Rolex Lady-Datejust 279384rbr-0012?
For the Lady-Datejust 279384rbr-0012, with its mother-of-pearl dial and white gold case, the most suitable materials are vegetable-tanned alligator in ivory or pearl grey — for chromatic coherence — and shell cordovan in cognac or natural tones for those seeking a warmer patina. Smooth black calf leather offers a sharp formal contrast. A white gold deployant clasp completes the pairing without visual interruption between strap and case.
How do you change the strap on a Rolex Lady-Datejust 279384rbr-0012?
To replace the strap on the Lady-Datejust 279384rbr-0012, a spring bar tool is required. The 14mm lugs require spring bars of appropriate length for the 28mm case. It is advisable to work on a soft surface to avoid scratching the white gold case and Oystersteel components. Alternatively, the Casati Milano atelier offers strap fitting as part of its bespoke service at the time of delivery.
Are there aftermarket straps compatible with the Rolex Lady-Datejust 279384rbr-0012?
Yes, aftermarket straps compatible with the Rolex Lady-Datejust 279384rbr-0012 are available, provided they are made to a lug width of 14mm. Milano Straps offers an extensive selection of handcrafted straps in this size, available in alligator, calf leather, shell cordovan and rubber. For a fully personalised solution — including choice of leather, colour, stitching and clasp — the bespoke service of Casati Milano atelier is available.
How long does a leather strap last on a Rolex Lady-Datejust 279384rbr-0012?
The lifespan of a leather strap on a Lady-Datejust 279384rbr-0012 depends on material quality, frequency of use and exposure to perspiration and moisture. A high-quality vegetable-tanned alligator strap, properly cared for and kept away from water, will maintain its structure and appearance for 3 to 5 years with regular use. Shell cordovan, due to its dense fibrous structure, tends to last longer while developing a distinctive patina over time. Milano Straps offers an 18-month warranty against manufacturing defects on all catalogue 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

