Rolex · Lady-Datejust
Strap for Lady-Datejust 28 Platinum Domed / President / Dark Grey Roman
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 279166-0010, seen from the bench
Frequently asked questions
What is the lug width of the Rolex Lady-Datejust 279166-0010?
The Rolex Lady-Datejust ref. 279166-0010 has a lug width of 14mm. This measurement is taken between the inner faces of the lugs using a calliper and is specific to the 28mm platinum case. It must be respected precisely to ensure correct strap fitment without placing stress on the lug walls.
What is the best strap for the Rolex Lady-Datejust 279166-0010 in platinum?
For a platinum 950 case, the most suitable materials are Mississippi or hornback alligator (for formal and evening wear), shell cordovan (for durability and formal precision), and vegetable-tanned calf leather for everyday use. Chromatically, midnight blue, bordeaux and slate grey complement the cold, luminous tone of platinum. Casati Milano crafts bespoke 14mm straps with in-atelier leather selection.
How do you change the strap on a Rolex Lady-Datejust 279166-0010?
To replace the strap on the Lady-Datejust 279166-0010, use a fine-tipped springbar tool. The springbars — the spring-loaded pins securing the strap to the lugs — are compressed by applying light pressure into the lug channel. It is advisable to work on a soft surface to avoid scratching the platinum 950 case, which is softer than stainless steel or yellow gold.
Are there aftermarket straps compatible with the Rolex Lady-Datejust 279166-0010?
Yes. Any strap with a 14mm lug width is technically compatible with the Lady-Datejust 279166-0010. It is essential to verify that the curved strap end matches the lug profile of the Rolex case. Milanostraps.it offers a curated selection of 14mm aftermarket straps in alligator, calf leather and rubber, with bespoke options available through Casati Milano.
How long does a leather strap last on a Rolex Lady-Datejust 279166-0010?
The lifespan of a leather strap depends on materials and usage. A quality alligator strap with vegetable tanning, worn daily, typically lasts 2–4 years. Shell cordovan, being denser and less porous, can exceed 5 years with proper care. Key factors are exposure to water, perfume and perspiration. On a 28mm platinum dress watch, leather straps should be avoided in humid or aquatic environments.
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

