Strap for Lady-Datejust 26 Diamond Black Diamond Oyster

The Rolex Lady-Datejust 179384-0002 has a lug width of 13mm. This is a non-standard size, not interchangeable with the more common 18mm or 20mm straps. Before purchasing any aftermarket strap, always verify the internal lug-to-lug distance using a digital calliper.

For the Lady-Datejust 179384-0002 in white Rolesor, vegetable-tanned alligator straps represent the finest choice: the natural grain complements the precision of the white gold and steel case. Polished smooth calf leather suits formal pairings, while vulcanised rubber is recommended for sporting or aquatic use, ensuring both durability and precise fit on the 13mm lugs.

Strap replacement requires a quality spring bar tool with fine tips suited to the 13mm white gold lugs. Remove the spring bars gently using a lever action to avoid scratching the case. Given the value of the material — 18ct white gold — it is advisable to entrust the first strap change to an experienced watchmaker or the Casati Milano atelier to prevent permanent marks on the lugs.

Yes, compatible aftermarket straps exist, but the 13mm lug width significantly narrows the available selection compared to standard sizes. Milano Straps offers a dedicated range of 13mm straps — in alligator, calf leather, shell cordovan and rubber — handcrafted to ensure a precise fit on the Lady-Datejust 179384-0002 lugs without stressing or altering the original case.

The lifespan of a leather strap depends on leather quality, tanning method and daily use. A high-quality vegetable-tanned alligator strap, with proper care — periodic conditioning, rotation with other straps, protection from moisture — can last between three and six years while retaining structural integrity. Shell cordovan, owing to the density of its fibres, tends to develop a distinguished patina over time and generally lasts longer. Milano Straps provides an 18-month guarantee against manufacturing defects.