Rolex · Lady-Datejust
Strap for Lady-Datejust 28 Rose Gold / Diamond / Rose - Diamond / President
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 279135RBR-0029, seen from the bench
Frequently asked questions
What is the lug width of the Rolex Lady-Datejust 279135RBR-0029?
The Rolex Lady-Datejust 279135RBR-0029 has a lug width of 14mm, measured internally between the case lugs using a digital calliper. This dimension is specific to the 28mm case format and requires straps manufactured precisely to that measurement — adaptations from adjacent sizes are not acceptable.
What is the best strap for the Rolex Lady-Datejust 279135RBR-0029?
For an Everose gold case with a diamond-set bezel, vegetable-tanned alligator offers the most coherent material pairing: the scaled texture echoes the geometry of the pavé setting. Box calf leather is the second choice for those seeking understated daily elegance. An 18ct rose gold buckle or deployant clasp in 10–12mm width completes the ensemble without breaking chromatic continuity.
How do you change the strap on a Rolex Lady-Datejust?
Strap replacement requires a spring bar tool to release the spring bars connecting the strap to the 14mm lugs. The operation should be carried out on a padded surface to avoid scratching the Everose gold case. If in doubt, Casati Milano offers an in-atelier fitting service by appointment.
Are there aftermarket straps compatible with the Lady-Datejust 279135RBR-0029?
Yes. Aftermarket straps manufactured to a precise 14mm lug width are fully compatible with the Lady-Datejust 279135RBR-0029, provided the spring bars are included or compatible. Milano Straps offers a curated selection of artisan 14mm straps in various materials and finishes, made specifically for this dimension.
How long does a leather strap last on a Rolex Lady-Datejust?
Longevity depends on the material and conditions of use. A quality vegetable-tanned alligator strap, properly maintained and kept away from moisture and perfume, retains its structural and aesthetic integrity for 3–5 years with daily wear. Box calf develops a desirable patina but generally requires earlier replacement. Casati Milano provides an 18-month guarantee against manufacturing defects on all 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

