Strap for Datejust 31 Rolesor Yellow Domed / Oyster / Black Diamond

The lug width of the Rolex Datejust 31 178243-0051 is 16mm. This dimension is specific to this model and is not interchangeable with other Datejust variations. To verify compatibility, measure the distance between the two lugs on your watch case: this distance determines the exact width of the compatible strap.

The Datejust 31 in steel and yellow gold pairs perfectly with a vertical-grain alligator strap for a formal aesthetic, or with vegetable-tanned calfskin leather for softness and natural patina development over time. For sporty applications, dark shell cordovan or rubber straps offer practicality without aesthetic compromise. Your choice depends on how you intend to wear this watch: as a daily instrument or as a piece for special occasions.

To change the strap, you need a spring bar removal tool. Position the watch with the case facing upward, locate the small hole on the inside of the lug, insert the tool to push the pin and release the spring bar. Repeat on the other end. Never use improvised objects that could scratch the case. If uncertain, entrust the work to a specialised watchmaker: the cost of professional replacement is negligible compared to the risk of case damage.

Absolutely yes, provided the aftermarket strap is correctly manufactured and has the proper 16mm lug width. A high-quality artisanal leather strap with appropriate hardware and deployment clasp will not damage the watch and allows complete personalisation of its appearance. Specialised manufacturers often offer straps that exceed the quality of many original straps, providing superior longevity and comfort.

The lifespan of a leather strap varies according to the type of tanning and frequency of use. High-quality vegetable-tanned calfskin typically lasts 3–5 years with moderate daily wear, developing a desirable patina over time. Chrome-tanned alligator tends to be more durable, lasting up to 5–7 years. Occasional use significantly extends strap life. Regular maintenance—occasional cleaning and protection from moisture and perspiration—improves longevity. A well-crafted strap is easily replaceable, allowing you to refresh your watch at modest cost whenever necessary.