Rolex
Datejust 31 178384-0003— lug 16mm

The Rolex Datejust 31 178384-0003 has a lug width of 16mm. This measurement is taken internally between the two lugs at the lower part of the case and is the figure required when selecting any compatible aftermarket strap.

For the Datejust 31 178384-0003 in steel and white gold, a vegetable-tanned alligator strap is the most appropriate choice, consistent with the formal elegance of the reference. A smooth or padded calf leather strap offers a versatile alternative for daily wear, while a nylon NATO strap is suitable for casual or warm-weather use.

To replace the strap on the Datejust 31 178384-0003, use a fine-tipped springbar tool to release the spring bars from the lugs. Work on a soft surface to protect the case from scratches. Alternatively, the swap can be carried out by a watchmaker or at the Casati Milano atelier.

Yes. The Datejust 31 178384-0003 accepts any aftermarket strap with a standard 16mm lug width. Milano Straps offers a curated selection of handcrafted straps in various leathers and materials, all made with ends precisely calibrated to a 16mm fitting, available at milanostraps.it.

The lifespan of a leather strap depends on the material, maintenance and frequency of use. A quality vegetable-tanned alligator strap, regularly conditioned and kept away from moisture and perspiration, can last between 3 and 7 years while retaining its structural and aesthetic integrity. Calf leather typically has a shorter lifespan of approximately 2 to 4 years with regular use.