Strap for Datejust 31 Stainless Steel Fluted / Oyster / Pink

The Rolex Datejust 31 278274-0013 has a lug width of 16mm. This measurement is taken internally between the two lugs using a millimetre calliper and is the essential parameter for selecting a compatible strap. Do not use the original bracelet as a direct reference, as the expansion links may distort the reading.

For the Datejust 31 278274-0013 in white Rolesor, a vegetable-tanned alligator strap with a gloss finish is the most coherent choice given the watch's formal character. Fine-grain smooth calf leather is preferable for everyday wear, whilst vulcanised rubber suits more active contexts. The final choice depends on the dial colour and the desired chromatic pairing.

To replace the strap, the spring bars securing the original bracelet to the lugs must be removed. A spring bar tool is inserted into the lug hole to compress the spring and release the bar. Care should be taken not to scratch the white gold lugs: it is advisable to protect the case with adhesive tape, or to entrust the operation to a watchmaker or the Casati Milano atelier.

Yes. Any strap with a 16mm attachment is technically compatible with the Datejust 31 278274-0013. Milano Straps offers a curated selection of handcrafted straps in leather, alligator, calf, and technical materials specifically in 16mm. It is also important to check the strap thickness at the case end to ensure correct fitting between the lugs without excessive force.

The lifespan of a leather strap depends on the material, tanning method, and usage. A quality vegetable-tanned alligator strap, used with care and kept away from water and excessive perspiration, typically lasts 2–4 years under regular use. Calf leather tends to develop a characteristic patina over time. Casati Milano provides an 18-month guarantee against manufacturing defects on all atelier-made straps.