Strap for Aquis Dat Watt

The lug width is 24 millimetres. This measurement corresponds to the distance between the two spring bar attachment shoulders on the case. It is a non-standard dimension in the serial market, which means that the vast majority of generic straps will be incompatible. Precision measurement is essential: use a digital calliper, positioning the shoulders on the inner surface of the lug, excluding the spring bar thickness.

The choice depends on intended use and aesthetic preference. For a 24mm lug width, we recommend: alligator in brown (elegant contrast with the metallic case), shell cordovan for those desiring a patina that evolves over time, vegetable-tanned calf for immediate softness, military sage NATO for technical coherence, or FKM rubber for demanding aquatic environments. A custom artisanal solution guarantees constructive compatibility without visible gaps.

The strap is secured by a spring bar positioned horizontally on the lug. Use a dedicated spring bar tool to compress the spring on one side, releasing the bar from the steel shoulder. Once extracted, remove the old strap and insert the bar into the new strap, verifying that both shoulders engage correctly in their seats. The bar must slide linearly without forcing. Do not use screwdrivers, as they will damage the lug.

Yes, but availability in the serial market is limited compared to standard sizes (20mm, 22mm, 26mm). The most reliable solution is to entrust specialist artisans in custom straps, such as Casati Milano, who are capable of crafting a strap respecting the exact 24mm geometry, with free choice of material, colour, and finish. Mass-market aftermarket 24mm straps are rare and often of inferior construction quality.

The durability of a leather strap depends on frequency of use, ambient humidity, and the quality of tanning. A high-quality artisanal alligator or shell cordovan strap, with thickness exceeding 1.4mm, has an estimated durability of 2–4 years with daily wear. Vegetable-tanned calf, being softer, tends to wear slightly more rapidly (18–36 months). Leather stretches over time: it is normal to observe a variation of 3–5mm in final length after the first 2–3 months of use. Avoid prolonged exposure to humidity and alternate with rubber straps during summer.