Strap for Datejust 31 Rolesor Everose Domed Diamond / Jubilee / Purple Roman

The lug width (or strap width) of the Rolex Datejust 31 178341-0008 is 16 millimetres. This measurement is taken as the internal distance between the lugs of the watch case. It is crucial to verify this specification before purchasing an aftermarket strap, as an incompatible lug width will result in discomfort and potential damage to the case. Using a digital calliper positioned perpendicularly between the lugs will provide precise confirmation of compatibility.

For the Datejust 31 178341-0008 in rose gold and stainless steel, we recommend a cognac-brown alligator strap or a satin hazelnut calf strap—materials that enhance the chromatic warmth of the Everose without competing visually. Alligator develops a desirable patina over time, whilst calf leather guarantees durability and elegant texture. For formal occasions, black or burgundy shell cordovan creates an absolute statement of sophistication. The principle: the strap must resonate within the same warm colour band as the rose gold case.

Strap replacement requires a specific tool: a spring bar removal tool to gently compress the watch's lugs and extract them from the strap slots. Place your watch on a soft cloth surface, work under natural light, and compress the spring bar towards the case body. Once free, disconnect the old strap and insert the new one by threading the lugs into the new slots. If you prefer to avoid any risk, consult an authorised Rolex service centre or a professional watchmaker. Casati Milano also offers a bespoke strap-change service by appointment.

Yes, absolutely. A quality aftermarket strap with a 16mm lug width is fully compatible with the 178341-0008. Many collectors choose artisanal straps in alligator, calf, or shell cordovan to expand their colour and style options. Compatibility is guaranteed by lug width: simply ensure it is precisely 16mm. Milanostraps curates a selection of 16mm straps in fine leathers, with a guarantee of artisanal quality.

A fine leather strap (alligator, calf, shell cordovan) with regular maintenance will last between 4 and 8 years of daily wear. Alligator, thanks to the density of its grain, tends to resist longer and develops a desirable patina. Satin calf, equally robust, benefits from occasional treatment with specialist balms. Shell cordovan, when properly cared for, can exceed 10 years. Longevity depends on environmental factors (humidity, direct sunlight, perspiration) and frequency of use. A vegetable-tanned leather strap, crafted artisanally, ages with greater grace and can be professionally restored multiple times throughout its life. Casati Milano provides straps with an 18-month warranty against production defects.