Rolex
Datejust 31 278243-0014— lug 16mm

The Rolex Datejust 31 278243-0014 features a lug width of 16 millimetres. This dimension is standard across Rolex 31mm models and is essential for selecting a compatible strap. Measuring the lug width correctly ensures a perfect fit and proportionate aesthetics on the wrist.

The optimal strap depends on intended use and personal preference. For formal wear, alligator in brown or cognac tones complements the yellow gold case beautifully. For daily use, vegetable-tanned calf leather offers authenticity and durability. For summer, an anthracite grey rubber strap maintains elegance without weight. All straps must feature a 16mm lug width for compatibility.

Strap replacement requires a dedicated spring bar tool to remove and insert the bars that secure the strap to the case. If you lack experience, consult a qualified jeweller or specialised atelier. Casati Milano offers professional replacement and customisation services by appointment at the Milan atelier.

Yes, an aftermarket strap is compatible with the Datejust 31 278243-0014 provided it features a 16mm lug width. Our catalogue offers 16mm straps specifically designed for this model, crafted in alligator, calf, rubber and other premium materials. Technical compatibility is assured; aesthetic and construction quality depend on the manufacturer.

Leather strap longevity varies based on material, usage patterns and care. An alligator or shell cordovan strap typically lasts 4–6 years with daily wear, whilst more delicate calf leather may require replacement after 2–3 years. Proper maintenance—avoiding prolonged moisture and direct water contact—significantly extends service life. Casati Milano guarantees an 18-month warranty against manufacturing defects.