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

The Rolex Datejust 31 reference 178243-0022 has a lug width of 16mm. This measurement is taken with a calliper gauge across the internal distance between the two lugs on the upper side of the case. Adhering to this specification is essential to ensure a precise fit without lateral play.

For the two-tone Datejust 31 in steel and yellow gold, the most suitable straps are polished alligator in cognac or honey tones (to complement the yellow gold), vegetable-tanned calf leather for daily wear, or shell cordovan for maximum durability and compactness. The correct geometry for this model's integrated lugs is a tapered profile, typically 16mm at the lug tapering to 14mm at the buckle.

To replace the strap, the 1.8mm spring bars securing it to the case lugs must be removed. Use a fine-tipped spring bar tool inserted into the lateral slot of the lug, applying gentle leverage to avoid scratching the Oystersteel case. It is advisable to work on a soft surface and, if in doubt, to entrust the operation to a watchmaker or the Casati Milano atelier.

Yes. Any strap with a 16mm lug width and a tapered profile is compatible with the Datejust 31 178243-0022. Milanostraps.it offers a selection of handcrafted 16mm straps in various materials and finishes, designed specifically for the geometry of Rolex integrated lugs, with or without a deployant clasp.

A quality leather strap — alligator, vegetable-tanned calf, or shell cordovan — fitted to a Datejust 31 with regular use has an average lifespan of 2 to 4 years with proper care: drying after water contact, periodic application of leather conditioner, and rotation with other straps. Casati Milano straps are covered by an 18-month warranty against manufacturing defects.