Strap for Datejust 31 Yellow Gold Domed / Oyster / Black MOP

The Rolex Datejust 31 reference 178248-0076 has a lug width of 16mm. This measurement is taken between the inner edges of the lugs using a millimetre calliper. It is specific to the 31mm format within the Datejust family and differs from the 20mm lug width found on the 36mm and 41mm variants.

For an 18-carat yellow gold case, the most suitable materials are Mississippi alligator in tobacco, burgundy or midnight blue tones, shell cordovan for its natural patina, and vegetable-tanned calf leather for everyday versatility. An 18-carat yellow gold deployant clasp completes the pairing, providing visual symmetry and mechanical security.

To replace the strap on a Datejust 31, the spring bars securing the strap to the lugs must be released using a spring bar tool. Insert the forked tip into the lug slot and compress the spring bar to disengage it. On yellow gold cases, use soft lug protectors to avoid scratching. For best results, it is advisable to rely on a specialist watchmaker or an atelier such as Casati Milano.

Yes. Any aftermarket strap with a 16mm attachment is fully compatible with the Rolex Datejust 31 178248-0076, provided the spring bars and end-piece thickness are appropriate for the gold lugs. Milanostraps.it offers a curated selection of handcrafted 16mm straps made from selected leathers, specifically suited to this reference.

The lifespan of a leather strap depends on material quality, frequency of wear and maintenance. A quality alligator or shell cordovan strap, rotated regularly and kept away from prolonged moisture and perspiration, will retain its structural and aesthetic integrity for 3 to 5 years. Vegetable-tanned calf straps typically last 2 to 4 years. Periodic cleaning with neutral products and the use of a leather conditioner will significantly extend strap life.