Strap for Datejust 31 Stainless Steel Domed Diamond / Oyster / Pink - Diamond

The Rolex Datejust 31 reference 178344-0067 features a lug width of 16 millimetres. This is a non-standard dimension, specific to smaller Datejust models. To verify compatibility, measure the distance between the lugs using a digital calliper at the narrowest point, or consult the marking on the inside of the lug itself.

For the 178344-0067, we recommend an alligator strap for formal wear, or vegetable-tanned calf leather for a more versatile approach. Alligator enhances the white gold and steel bi-metal through its regular rectangular pattern. A cognac or burgundy calf develops a natural patina over time that further complements the white gold case. Quality rubber for more conscientious daily wear.

Strap replacement requires removal of the spring bars. Place the watch on a soft surface and use a dedicated removal tool (available from authorised dealers) to compress the bar and extract it from the lugs. Then insert the bars into the new strap following the same procedure in reverse. We recommend having this done by a professional to avoid damage to the case.

Yes, provided the lug width is precisely 16 millimetres and the strap is crafted to this specific dimension. The non-standard width makes precision essential: even half a millimetre deviation compromises fit. Always verify the technical specifications provided by the manufacturer, and when in doubt, consult the Casati Milano atelier for personalised advice.

The lifespan of a leather strap depends on usage frequency and the type of tanning. A quality artisanal alligator or vegetable-tanned calf typically lasts 3–5 years of daily use, developing a desirable patina. Rubber straps have a slightly longer lifespan (4–6 years). With the Casati Milano service, you receive an 18-month warranty on manufacturing defects. Real longevity increases significantly with regular maintenance and rotating between multiple straps.