Rolex · Lady-Datejust
Strap for Lady-Datejust 28 Rolesor Rose Fluted / Oyster / Sundust Diamond
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 279171-0020, seen from the bench
Frequently asked questions
What is the lug width of the Rolex Lady-Datejust 279171-0020?
The Rolex Lady-Datejust 279171-0020 has a lug width of 14 mm. This measurement can be verified using a digital calliper placed between the two lugs at the point where they meet the case. This is a non-standard size that requires straps specifically produced or selected for this dimension.
What is the best strap for the Rolex Lady-Datejust 279171-0020?
For the Lady-Datejust 279171-0020 in Everose Rolesor, alligator straps with square scales in warm tones (burgundy, cognac, dark brown) are the most coherent choice given the case materials. Vegetable-tanned calf leather is the most versatile alternative, while shell cordovan offers exceptional longevity and a compact, burnished surface. The recommended closure is a rose gold pin buckle of 10–12 mm or a butterfly deployant clasp.
How do you change the strap on a Rolex Lady-Datejust 279171-0020?
To replace the strap on the Lady-Datejust 279171-0020, a spring bar tool is required to remove the spring bars from the 14 mm lugs. The operation can be carried out by a watchmaker or skilled craftsman. It is advisable to work on a soft surface to protect the case and Everose bezel from scratches.
Are there aftermarket straps compatible with the Rolex Lady-Datejust 279171-0020?
Yes, aftermarket straps specifically made for the 14 mm lug width of the Lady-Datejust 279171-0020 are available. Milanostraps.it offers a curated selection of artisan-crafted straps in various leathers and finishes. Casati Milano also produces fully bespoke straps, with material selection at the Milan atelier and personalised craftsmanship throughout.
How long does a leather strap last on the Rolex Lady-Datejust 279171-0020?
The lifespan of a leather strap depends on material quality and frequency of wear. A high-quality alligator or shell cordovan strap, properly maintained, can last between 3 and 7 years. Vegetable-tanned calf leather develops a pleasing patina over time but is more susceptible to moisture. It is advisable to rotate straps regularly and occasionally apply a dedicated leather conditioner.
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

