Strap for Aquis Date 43.5 Stainless Steel / Matte Black / Calf

The lug width of this model is 24mm. The distance between attachment points (measured centre to centre) is approximately 24mm, with manufacturing tolerance of ±0.5mm. We recommend measuring with a digital calliper to confirm compatibility with aftermarket straps before purchase.

The ideal strap depends on intended use: for daily elegance, we recommend black vegetable-tanned calf or alligator leather, which coordinates with the black ceramic bezel. For aquatic activities and humid environments, ballistic nylon NATO or FKM rubber provides superior grip. The 300-metre water resistance makes it equally suitable for both applications.

The spring bars are accessible from the sides of the case. Use a spring bar tool to press the pin inward, releasing the strap from the first lug. Repeat on the opposite side. Insert the new strap by aligning the ends with the holes and press until the pin clicks into place. Do not force: the movement should be fluid and centred.

Yes, provided the nominal lug width is 24mm and the spring bars fall within the 19–22mm usable length range. However, variations in lug depth (distance between lugs) require verification prior to purchase. We recommend consulting exact specifications or contacting the atelier to confirm compatibility.

A natural leather strap on a dive watch has reduced lifespan compared to dry-wrist use only. If exposed to saltwater or chlorine frequently, the patina accelerates towards premature aging (6–12 months). For regular diving, we recommend alternating straps: leather for dry wrist, NATO or rubber for water. Vegetable tanning shows superior aging compared to synthetic tanning methods.