Strap for Datejust 31 Rolesor Yellow Diamond / Jubilee / Black MOP

The lug width of the Rolex Datejust 31 ref. 178383-0009 is 16 millimetres. This is the standard width for the 31mm Oyster case, precisely calibrated to maintain correct visual proportions between case and strap. Always verify compatibility by measuring the internal space of your case lugs, shoulder to shoulder, before ordering an aftermarket strap.

For the Datejust 31 ref. 178383-0009, we recommend genuine alligator or shell cordovan to enhance the Rolesor case's precious character. Alligator offers a naturally geometric texture that elegantly contrasts with yellow gold; shell cordovan provides superior durability and develops a fascinating patina over time. High-quality calf leather remains the most versatile choice, ideal for those seeking leather that ages with distinction.

Changing the strap on a Rolex Datejust 31 requires a specialised tool called a spring bar tool. Position the tip in the small slot beneath the lug, gently pushing downward to release the internal spring, then remove the spring bar. Repeat on the opposite lug, remove the old strap, and insert the new one by aligning it with the spring bar ends before repositioning into the case. We recommend having a professional perform this operation to avoid scratches on the case.

Yes, any strap with a 16mm lug width is compatible with the Rolex Datejust 31 ref. 178383-0009, provided it meets appropriate quality standards. However, material quality, finishing precision and leather resilience vary significantly across the aftermarket. Choose manufacturers that guarantee consistent leather thickness, precise finishes and traceable materials, such as those available in our catalogue from certified artisans.

Strap longevity depends on material and usage patterns: a quality alligator or shell cordovan strap, worn daily, typically lasts 4 to 7 years before replacement is needed. Standard calf leather lasts 3 to 5 years. Variables such as direct sunlight exposure, humidity levels and frequency of wear affect these estimates. Proper maintenance—avoiding showers and swimming pools, applying conditioner occasionally—extends strap lifespan.