Strap for Datejust 31 White Gold Diamond / Jubilee Diamond / Silver Diamond

The Datejust 31 178159-0055 has a lug width of 16 millimetres. This is the standard specification for 31-millimetre models in white gold and recent precious metal variants. Width is measured between the spring bar pins at the lugs. A compatible strap must be exactly 16mm wide with a maximum thickness of 3–3.5mm at the spring bar insertion point.

For a white gold 18-carat timepiece like the 178159-0055, alligator remains the traditional and most elegant choice: it features regular grain, a beautifully aging patina, and formal aesthetic appeal. Vegetable-tanned calf leather is the contemporary solution for those seeking durability and personal patina development. Shell cordovan offers superior resistance and natural lustre. Selection depends on intended use: alligator for formal occasions, calf for refined daily wear, fabric or rubber on a deployante for sportive-elegant contexts.

Strap replacement involves removing the two spring bars that connect the strap to the lugs. Use a proper spring bar tool to gently push the bar downward and release it from its socket. Once the original strap is removed, align the new strap's holes with the spring bars, then reinsert and verify the bars are firmly locked. If uncertain, consult an authorised Rolex service centre or a trusted watchmaker.

Yes, provided the aftermarket strap is manufactured for a 16-millimetre lug width. The Datejust 31 178159-0055 accepts quality non-official straps as long as they meet the precise width specification and correct spring bar thickness. Brand, material, and style can vary: premium alligator from reputable makers, fine-quality calf, or even woven NATO straps are compatible. Verification that the width is exactly 16mm and that spring bars lock securely is essential.

A high-quality leather strap (alligator, calf, shell cordovan) in daily wear typically lasts 5–8 years, depending on climate, frequency of use, and maintenance practices. Leather is a living material: thermal expansion, moisture, and perspiration accelerate ageing. An occasionally worn strap (once weekly) may last 10–15 years. Signs of natural wear—subtle crazing, matte patina, minor creasing—are aesthetically desirable and authenticate genuine leather. When a strap becomes brittle or damaged, it can be replaced independently whilst retaining the original spring bars and lugs.