Strap for Lady-Datejust 28 White Gold - Diamond / President / Silver

The Rolex Lady-Datejust 279139RBR-0006, featuring a 28mm white gold case, has a lug width of 14mm. This measurement should be taken with a digital calliper between the two lugs, flush against the case, and is essential for selecting a correctly fitting aftermarket strap.

For a white gold 18ct case with a diamond-set bezel, a vegetable-tanned Mississippiensis alligator strap is the most coherent choice both aesthetically and in terms of quality. The natural grain develops a refined patina over time, complementing the case without competing with it. Shell cordovan is a strong alternative, offering a mirror-like, uniform surface suited to more formal pairings.

Strap replacement requires a fine-tipped spring bar tool. Insert the tool into the slot between the lug and the strap, compress the spring bar and slide the strap outward. Always work on a soft surface to protect the white gold case from accidental scratching. If in doubt, consult a watchmaker or contact the Casati Milano atelier directly.

Yes. Any strap with a 14mm attachment and standard spring bars is technically compatible. Milanostraps.it offers a curated selection of handcrafted leather, rubber and fabric straps calibrated specifically for a 14mm lug width, designed to fit the Rolex lug geometry without forcing. Material and finishing quality is on a par with original manufacturer standards.

Longevity depends on material and usage. A high-quality vegetable-tanned alligator strap, worn with care and rotated with other straps, can last between three and seven years while developing a distinguished patina. Frequent exposure to water, perfume and perspiration accelerates deterioration. Milanostraps guarantees its handcrafted straps for 18 months against manufacturing defects.