Rolex · Lady-Datejust
Strap for Lady-Datejust 26 Rolesor Fluted Diamond Mother-of-Pearl
Takes 13 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
The Lady-Datejust 179313-0017, seen from the bench
Frequently asked questions
What is the lug width of the Rolex Lady-Datejust 179313-0017?
The Rolex Lady-Datejust ref. 179313-0017 has a lug width of 13mm. This measurement is taken between the two spring bar attachment points on the inner side of the lugs, and is specific to the 26mm Lady-Datejust family. It is a non-standard size: always ensure that any replacement strap is manufactured with a certified 13mm attachment width.
What is the best strap for the Rolex Lady-Datejust 179313-0017?
For a Lady-Datejust with a two-tone stainless steel and yellow gold case and mother-of-pearl dial, an alligator strap in vegetable-tanned leather represents the most coherent aesthetic choice. Smooth calf leather is an elegant, more understated alternative. A yellow gold deployante clasp coordinates beautifully with the watch's metallic components and protects the strap from daily wear.
How do you change the strap on a Rolex Lady-Datejust 179313-0017?
To replace the strap, the spring bars securing it to the 13mm lugs must be removed using a dedicated spring bar tool or a forked watchmaker's screwdriver. Care should be taken to avoid scratching the yellow gold lugs: it is advisable to protect the case with watchmaker's tape or to entrust the operation to a professional watchmaker or the Casati Milano atelier.
Are there aftermarket straps compatible with the Rolex Lady-Datejust 179313-0017?
Yes. The aftermarket offers straps with a 13mm attachment compatible with the Rolex Lady-Datejust 179313-0017. Milano Straps provides a curated selection of handcrafted straps in leather, alligator and other fine materials, produced to fit this specific lug width. Always verify the declared attachment width before purchasing.
How long does a leather strap last on a Rolex Lady-Datejust 179313-0017?
The lifespan of a leather strap depends on material quality, tanning method and daily use. A premium vegetable-tanned alligator strap, with regular maintenance (periodic cleaning and conditioning), can last between 3 and 6 years under regular wear. Milano Straps straps carry an 18-month warranty against manufacturing defects.
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

