Strap for Datejust 31 Rolesor Everose Fluted / Oyster / Pink Diamond

The lug width of the Datejust 31 178271-0045 is 16 millimetres. This dimension represents the distance between the two inner lugs of the case and is proportioned to the 31-millimetre diameter. To verify the compatibility of an aftermarket strap, measure with a digital calliper the distance between the lugs: the value must be between 15.9 and 16.1 millimetres for optimal insertion without forcing.

For the 178271-0045, black alligator represents the choice of ultimate classic elegance, creating a subtle contrast with the steel and rose gold. Vegetable-tanned calf leather offers superior softness and develops a magnificent patina over time. Shell cordovan provides structural rigidity and natural lustrous patina that amplifies the bi-metallic nature of the case. For intensive daily use, rubber with grid texture guarantees superior grip whilst maintaining the sporty profile compatible with the Rolesor.

The Datejust 31 uses standard universal spring bars (1.1-millimetre diameter). Remove the watch from the current strap using a dedicated tool or small flathead screwdriver: insert the blade beneath the spring bar pin to compress the spring, then extract it completely. Repeat the operation on the opposite lug. To mount the new strap, compress the spring bars and insert them into the lug seatings, verifying the correct positioning of the pins. If inexperienced, entrust the operation to a certified watchmaker to avoid damage to the lugs.

Yes, the Datejust 31 178271-0045 accepts any strap with a 16-millimetre lug width and 1.1-millimetre diameter spring bars (universal standard). Certified artisanal straps, such as those crafted by Casati Milano, guarantee perfect mechanical compatibility and noble materials (alligator, calf, shell cordovan) that enhance the bi-metallic Rolesor Everose character. Always verify that the strap is new or in excellent condition, as worn seating points could compromise the stability of the watch.

A quality leather strap, worn daily, has an average lifespan of 4 to 6 years, with variability due to climate, bodily humidity and wearing habits. Vegetable-tanned alligator tends to age better, maintaining structural integrity beyond 6 years. Shell cordovan strap, being more rigid, typically lasts 5 to 7 years. Factors accelerating wear include: constant humidity, prolonged direct sun exposure, salty perspiration and repeated bending. Seasonal rotation of straps significantly extends the life of each strap by reducing cumulative exposure.