Strap for Datejust 31 Yellow Gold Diamond / Oyster / Champagne Floral

The lug width of the Rolex Datejust 31 ref. 178288-0086 is 16mm. This measurement is taken from the centre of one spring bar hole to the centre of the other. This is an unconventional dimension requiring specialist craftsmen to ensure superior construction quality and proper fitment.

For a Datejust 31 in 18K yellow gold, we recommend natural alligator for formal elegance, vegetable-tanned calf for aesthetic evolution over time, or shell cordovan for extended durability. NATO or sports straps are unsuitable: the Datejust 31 is a refined instrument requiring coherent presentation throughout.

You will need a pin pusher tool to remove the spring bars: insert the tool into the lateral groove on the case to eject the pin. This is a delicate operation that we advise against attempting unsupervised on a yellow gold case. Consult a professional watchmaker or use Casati Milano's bespoke service for guaranteed results.

Yes, provided it is specifically engineered for 16mm lug width. We recommend verifying leather thickness (minimum 1.4mm), quality of the metal deployante clasp, and double-stitched construction. Straps from milanostraps.it are tested for compatibility with this reference.

A quality alligator or vegetable-tanned calf strap lasts 3-4 years with daily wear. Shell cordovan exceeds 5 years. Longevity depends on humidity exposure, perspiration, direct sunlight and cleaning frequency. Vegetable-tanned leather develops character (patina) over time, whereas industrial treatments degrade more rapidly.