Rolex
Lady-Datejust 279165-0009— lug 14mm

The Rolex Lady-Datejust 279165-0009 has a lug width of 14mm. This measurement refers to the internal distance between the two lugs of the case and determines the attachment width of the strap. It is essential to verify this dimension with a digital calliper before purchasing any aftermarket strap.

For a 28mm Everose gold case, vegetable-tanned alligator straps represent the most aesthetically and technically coherent choice. The square grain of the alligator belly complements the quality of the metal. Box calf leather is a sound alternative for daily wear, whilst shell cordovan suits those seeking a compact leather with a noble patina. All options must feature a 14mm attachment width.

The strap on the Lady-Datejust 279165-0009 is secured via spring bars in the 14mm lugs. To remove it, a fine-tipped spring bar tool (such as a Bergeon 6767) is required to compress the spring bar within the lug slot and release the strap. Care must be taken to avoid scratching the Everose gold case. If in doubt, it is advisable to entrust the operation to a watchmaker or a specialist atelier.

Yes. Any strap with a 14mm attachment width and standard spring bars is technically compatible with the Lady-Datejust 279165-0009. Milano Straps offers a selection of 14mm straps in various materials — alligator, calf leather, rubber, shell cordovan — handcrafted and fully compatible with this reference. The buckle or deployant clasp should be proportioned to suit the 28mm case and the wearer's wrist.

The lifespan of a leather strap depends on the material, care routine and frequency of use. A vegetable-tanned alligator strap, maintained regularly (leather conditioner every 3–6 months, minimal exposure to water and perspiration), typically lasts 3–5 years whilst retaining its structure and appearance. Box calf has a comparable lifespan. Shell cordovan is notably more durable and long-lasting. Casati Milano straps carry an 18-month warranty against manufacturing defects.