Rolex
Datejust 31 178273-0038— lug 16mm

The Rolex Datejust 31 ref. 178273-0038 has a lug width of 16mm. This measurement is taken between the two lower lugs of the case and is essential for selecting a compatible aftermarket strap with the correct spring bar fit.

For the Datejust 31 178273-0038 in Rolesor configuration with a mother-of-pearl dial, a vegetable-tanned alligator strap is the most coherent choice for formal wear. Smooth or grained calf leather is preferable for daily use, whilst vulcanised rubber suits sporting contexts. In all cases, the correct width is 16mm.

To replace the strap or bracelet on the Datejust 31 178273-0038, the spring bars securing the strap to the case lugs must be removed using a spring bar tool inserted into the small hole on the lug flange. Care should be taken to avoid scratching the yellow gold lug surfaces. If in doubt, it is advisable to consult a professional watchmaker.

Yes, a wide range of aftermarket straps with a 16mm width are compatible with the Datejust 31 178273-0038. Milano Straps offers handcrafted options in alligator, calf leather, shell cordovan and rubber, with contrast or tone-on-tone stitching and stainless steel buckles. Dimensional compatibility is ensured by the standard 16mm lug width.

The lifespan of a leather strap depends on the material, care and frequency of use. A quality alligator strap with vegetable tanning and artisanal finishing can last between 3 and 5 years with regular wear. Avoiding prolonged exposure to water, perspiration and UV rays significantly extends the strap's life. Shell cordovan generally offers greater durability than standard bovine leather.