Rolex
Lady-Datejust 279138rbr-0031— lug 14mm

The Rolex Lady-Datejust 279138rbr-0031 features a 28mm case with a lug width of 14mm. This measurement refers to the internal distance between the two case lugs and determines the strap width at the top end, where it attaches directly to the case.

For the Lady-Datejust 279138rbr-0031 in yellow gold, an alligator strap in vegetable-tanned leather in cognac, bordeaux or honey tones offers the most coherent pairing with the character of this timepiece. Box-calf leather and shell cordovan are strong alternatives for everyday wear. In all cases, the strap attachment width must be 14mm.

The strap on the Lady-Datejust 279138rbr-0031 is secured to the case via 14mm spring bars. To replace it, use a spring bar tool with a hooked tip: compress the spring bar ends, slide the strap out of the lugs, then fit the new strap ensuring the spring bar clicks securely into both sides. If you are unfamiliar with the process, it is advisable to have it done by a watchmaker to avoid scratching the gold case.

Yes. Any strap with a 14mm attachment width is compatible with the Lady-Datejust 279138rbr-0031, provided it uses standard spring bars. Milano Straps and the Casati Milano atelier produce handcrafted straps specifically sized for this lug width, available in alligator, calf leather, shell cordovan, NATO and rubber, with pin buckle or deployant clasp.

Longevity depends on leather quality, frequency of wear and maintenance. A high-quality vegetable-tanned alligator strap, worn in rotation and stored away from moisture and direct light, can last between 3 and 7 years while retaining a distinguished appearance. Cordovan and box-calf leathers offer comparable durability. Exposure to perspiration, water and perfume accelerates deterioration: it is recommended to remove leather straps before physical activity or prolonged water contact.