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

The Rolex Lady-Datejust 279139RBR-0012 features a 28mm case with a lug width of 14mm. This measurement is consistent across the entire Lady-Datejust 28mm family and should be verified with digital callipers measuring the inner distance between the lugs to ensure the correct fit of any replacement strap.

Given the 18-carat white gold case of the 279139RBR-0012, the most coherent choices are a vegetable-tanned alligator strap in glossy finish — which complements the polished tone of the gold — or a box-calf leather strap for a more understated result. In either case, the strap attachment should be pre-curved or sufficiently pliable to conform to the specific geometry of the 14mm lugs.

Strap replacement requires a fine-tipped spring bar tool to release the spring bars securing the strap to the lugs. On a white gold case set with diamonds, extreme care is required to avoid scratching the lugs or bezel. The operation is best entrusted to an authorised watchmaker or experienced craftsman; Casati Milano offers this service by appointment at the Milan atelier.

Yes. The aftermarket offers 14mm-attachment straps compatible with the Lady-Datejust 28mm. Milanostraps.it stocks a curated selection of handcrafted straps in various leathers and finishes, made with curved or straight ends to fit the original Rolex lugs. It is essential to verify that the attachment profile is pre-curved to avoid stress on the lugs.

Longevity depends on the material, frequency of wear, and exposure to moisture and perspiration. A quality vegetable-tanned alligator strap worn daily with moderate use typically lasts 2 to 4 years. Shell cordovan, owing to its dense fibre structure, tends to last longer while developing a distinctive patina. A deployant clasp reduces mechanical stress on the stitching, extending the strap's service life. Casati Milano provides an 18-month guarantee against manufacturing defects.