Strap for Datejust 31 Stainless Steel / Yellow Gold / Domed - Diamond / Champagne / Oyster

The lug width of the Rolex Datejust 31 278343rbr-0013 is 16 mm. This measurement refers to the internal distance between the two case lugs and is the critical figure when selecting a compatible strap. It is specific to this reference and not interchangeable with the Datejust 36 or 41, both of which use 20 mm lug widths.

For the Datejust 31 278343rbr-0013 in yellow Rolesor, the most suitable options are alligator straps in champagne, tabac or bordeaux, which complement the yellow gold and steel case combination. Vegetable-tanned calf leather develops a distinguished patina over time, while shell cordovan offers superior resistance to deformation for daily wear. A 16/14 mm taper provides the most balanced proportion on a 31 mm case diameter.

To replace the strap on the Datejust 31, a springbar tool is required. Insert the forked tip between the lug and the springbar, pressing inward to release the bar while keeping the case surfaces protected. It is advisable to work on a soft mat and, ideally, to entrust the operation to a watchmaker or the Casati Milano atelier to avoid scratching the polished lug area.

Yes. The Datejust 31 278343rbr-0013 uses a standard springbar attachment system, compatible with any aftermarket strap featuring a 16 mm lug end. Milano Straps offers a curated range of 16mm straps in alligator, calf leather, shell cordovan, NATO fabric and rubber, each crafted in proportion to the 31 mm case diameter.

The lifespan of a leather strap depends on material quality, frequency of wear and maintenance. A quality alligator strap, kept away from moisture and treated periodically with appropriate leather conditioner, typically lasts 2 to 4 years with daily use. Vegetable-tanned calf and shell cordovan follow a similar cycle but develop a desirable patina over time. Milano Straps provides an 18-month warranty against manufacturing defects on all straps.