Rolex
Datejust 31 178384-0067— lug 16mm

The Rolex Datejust 31 ref. 178384-0067 has a lug width of 16mm. This measurement is taken between the two inner lugs of the case using a digital calliper with the strap removed. It is the critical parameter for selecting a compatible aftermarket strap.

Given the white Rolesor combination of the Datejust 31, an alligator strap in vegetable-tanned leather in cool tones — midnight blue or slate grey — is the most coherent pairing with the white gold and 904L steel case. For daily wear, smooth calf leather or shell cordovan offer durability and develop a distinctive patina over time. A steel deployant clasp completes the formal presentation.

The strap is removed using a springbar tool inserted into the lug hole to compress the spring bars. Care should be taken not to scratch the white gold surfaces; it is advisable to protect the case with paraffin tape during the operation. The process requires a standard 1.5mm springbar.

Yes. Any strap with a 16mm attachment and standard 1.5mm spring bars is compatible with the Datejust 31. milanostraps.it offers a curated selection of handcrafted 16mm straps made specifically for this model, with bespoke customisation available through the Casati Milano atelier.

The lifespan of a leather strap depends on the material and frequency of use. A quality alligator strap with vegetable tanning and hand-finished edges can last between three and six years with regular wear. Shell cordovan, owing to its dense fibrous structure, tends to last longer. In both cases, prolonged exposure to perspiration, water, and direct sunlight should be avoided.