Rolex · Lady-Datejust
Strap for Lady-Datejust 28 Rolesor Yellow Fluted / Oyster / Champagne 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 279173-0012, seen from the bench
Frequently asked questions
What is the lug width of the Rolex Lady-Datejust 279173-0012?
The Rolex Lady-Datejust 279173-0012 features a lug width of 14mm. This is a non-standard size relative to the most common aftermarket strap widths, reflecting the proportions of the 28mm Oyster case. Any replacement strap must be specifically cut to a 14mm attachment to ensure a precise and secure fit.
What is the best aftermarket strap for the Lady-Datejust 279173-0012?
For the 279173-0012 in Oystersteel and yellow gold, a vegetable-tanned alligator strap with a polished or semi-polished finish is the most coherent choice given the watch's jewellery-oriented character. Alternatively, smooth calf leather in cognac or burgundy complements the warm tones of the yellow gold bezel. For active use, a 14mm vulcanised rubber strap maintains water resistance while preserving the case proportions.
How do you change the strap on a Rolex Lady-Datejust 279173-0012?
To remove the original Jubilee or Oyster bracelet, a fine-tipped spring bar tool is required. Insert the tip into the lug slots on either side to compress the spring bars securing the strap. Work on a soft surface to avoid scratching the case. For first-time strap changes, it is advisable to consult a watchmaker or visit the Casati Milano atelier, where the new strap can be fitted with correctly tensioned spring bars.
Are there compatible aftermarket straps for the Lady-Datejust 279173-0012?
Yes, aftermarket straps specifically produced with a 14mm attachment are compatible with the Lady-Datejust 279173-0012. Milano Straps offers a curated selection of handcrafted straps in this size, available in alligator, calf leather, rubber and other materials, with standard buckle or deployant clasp options. Dimensional compatibility is guaranteed by the 14mm lug width; end curvature can be customised upon request at the Casati Milano atelier.
How long does a leather strap last on a Rolex Lady-Datejust 279173-0012?
The lifespan of a leather strap depends on material quality, frequency of use, and exposure to perspiration and moisture. A high-quality handcrafted alligator strap, used on rotation and properly maintained, can last between two and five years while retaining structural integrity and aesthetic appeal. Vegetable-tanned leathers develop a characteristic patina over time, enhancing their visual depth. Prolonged contact with water should be avoided, and the strap should be stored away from direct light when not in use.
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

