Strap for Datejust 31 Stainless Steel Diamond / Jubilee / Pink

The Rolex Datejust 31 178384-0032 features a lug width (ansa misura) of 16mm. This is the distance between the two attachment pins of the case where the strap is fitted. Accurate measurement is essential to ensure compatibility: using a digital calliper positioned perpendicular to the lugs reveals immediately whether the lug width is exactly 16mm. There are no variants of this reference with different measurements.

For the Datejust 31 in white gold and steel, we recommend a black alligator strap or cognac brown alligator, alternatively a burgundy natural shell cordovan. These materials complement the cool tone of white gold without competing visually with the dial. For a summer option, calf leather with vegetable tanning in beige or white guarantees elegance without overwhelming the aesthetic. Avoid bright colours or overly sporty materials, which would betray the classic soul of the Datejust.

Strap replacement requires a dedicated tool (spring bar tool) and a steady hand. Position the watch face-down on a soft surface, locate the hole on the lower lug, gently insert the tool tip to compress the internal spring and slide the pin away. Repeat on the other lug. Insert the new strap by aligning the pins, push until the spring clicks into place and verify the fit. If unsure, contact an authorised Rolex service centre or a professional watchmaker.

Yes, provided the strap is designed for a 16mm lug width. A quality handcrafted leather strap or alternative material does not compromise the watch and allows you to express your personal style. Relying on specialists who understand the delicate proportions of the Datejust 31 is essential: a poorly proportioned or vulgar strap can diminish the watch's elegance. Milanostraps offers straps selected and compatible with the Datejust 31.

A quality leather strap, worn daily, maintains its aesthetic and functional characteristics for 2-4 years, depending on the tanning method and leather type. Vegetable-tanned alligator develops patina over time, becoming softer and more fascinating. Shell cordovan resists longer thanks to its natural density. Occasional wear significantly extends durability. Factors such as humidity, direct sun exposure and perspiration accelerate ageing. Casati Milano straps come with an 18-month guarantee against manufacturing defects.