Strap for Datejust 31 Stainless Steel Domed Diamond / Jubilee / Black - Diamond

The Rolex Datejust 31 model 178344-0062 features a lug width of exactly 16mm. This measurement is precise and not interchangeable with other Rolex models or brands. To verify it, use a digital calliper to measure the distance between the internal edges of the two metal lugs on the case. Selecting the correct lug width is essential to avoid compatibility issues and strap stability problems.

For the two-tone Rolesor case of this model, alligator leather remains the classical choice, with its regular grain creating an elegant contrast with the gold and steel. Shell cordovan offers a deeper texture and rich lustre. If you prefer sustainability, vegetable-tanned calf leather ages beautifully over time. For daily wear or humid climates, technical rubber maintains refined proportions. The texture and colour should harmonise with the two-tone contrast of the case.

The procedure requires a specific tool: a spring bar remover with two small prongs. Position the watch on a soft, stable surface. Gently insert one prong under the end of the spring holding the strap to the lug, applying light outward pressure. Once the spring is compressed, remove the pin and repeat on the other side. Proceed carefully to avoid scratching the case, particularly if it is in gold. Consult a professional watchmaker if you lack experience.

Yes, provided the lug width is exactly 16mm and the internal shoulders of the lug fit the geometry of the Rolex case. Quality artisanal straps—such as those in alligator, shell cordovan, or calf—are fully compatible with the Datejust 31. Always verify with the manufacturer that the strap has been crafted specifically for 16mm Rolex lugs. A custom strap of watchmaking quality is an opportunity to personalise your watch whilst maintaining elevated construction standards.

Lifespan depends on material and use. A quality watchmaking alligator strap typically lasts between 3 and 5 years with daily wear, owing to the natural resistance of the scales. Shell cordovan and vegetable-tanned calf have similar longevity but age more visibly. A technical rubber strap may last longer if exposed to humid climate, with superior durability but less aesthetic elegance. Rotating seasonal straps extends the life of each one. With correct maintenance and periodic conditioning, a quality leather strap can easily reach 7–8 years.