Rolex
Datejust 31 178274-0008— lug 16mm

The Rolex Datejust 31 reference 178274-0008 has a lug width of 16mm. This measurement is taken on the inner side between the two lugs, directly at the case, using a vernier calliper. It is essential to measure at this point rather than at the outer lug ends to ensure you select the correct strap size.

For the Datejust 31 178274-0008 in steel and white gold, straps in vegetable-tanned alligator or shell cordovan are the most fitting choice for its formal register. Navy or burgundy alligator Belly enhances the fluted white gold bezel, while cordovan develops a patina over time that aligns with Rolex's longevity philosophy. For everyday wear, smooth calf leather or vulcanised rubber offer greater resistance.

To replace the strap on the Datejust 31, use a fine-tipped spring bar tool to remove the spring bars connecting the bracelet or strap to the lugs. Insert the tip into the side hole of the lug, compress the spring bar, and slide the strap free. Care must be taken to avoid scratching the lugs: it is advisable to protect the case with low-tack adhesive tape during the operation.

Yes. Many artisan manufacturers produce 16mm straps compatible with the Datejust 31 178274-0008. Compatibility is ensured by matching the lug width (16mm) and the curved end profile of the strap, which must follow the contour of the Oyster lugs. Milanostraps.it offers a curated selection of handcrafted 16mm straps made from selected materials, specifically suited to this reference.

The lifespan of a leather strap depends on material quality, frequency of use, and environmental conditions. A quality vegetable-tanned alligator strap, handled with care and stored properly, can last between three and seven years. Shell cordovan tends to last longer due to the density of its fibres. Prolonged exposure to water, perspiration, and fragrances accelerates deterioration: rotating between several straps and avoiding intense humidity is strongly recommended.