Strap for Aquis Date 43 Stainless Steel / Black / Bracelet

The lug width is 26mm. This measurement corresponds to the distance between the two spring bar attachment holes on the case lugs. To verify compatibility of a strap, measure precisely from the outer edge to outer edge of the rectangular holes: 26mm is the standard specification for this model.

For the proportions of the 43mm case, robust and generously-thick straps are advised: natural alligator with fine grain, vegetable-tanned calf leather, or reinforced cordura NATO. Alligator represents the noblest choice; vegetable-tanned calf develops rich patina over time; NATO ensures maximum sporting practicality. Selection depends on primary use (formal vs. sporting) and preference for chromatic evolution.

The strap is secured via spring bars (small metallic springs) inserted into the rectangular holes at the case lugs. Using a spring bar tool (specific two-ended instrument), insert the tip into the pin hole, push the spring inward, remove the old strap, align the new strap's holes, and release the spring. The operation takes seconds and can be performed by anyone with care.

Yes, but with precision: any strap with exact 26mm lug width (measured between outer edges of the holes) is compatible. However, artisanal straps of superior quality, such as those from Casati Milano, guarantee calibrated thickness, constructive quality, and finishing that enhance the proportions of the 43mm case. Avoid overly thin straps (easily deform) or generic-economy options (faulty stitching).

A quality vegetable-tanned calf strap lives 3-5 years with moderate daily wear, thanks to the mass of the 43mm case requiring thick, resistant leather. Alligator, a more precious and elastic material, may last 5-7 years without significant degradation. Longevity depends on: ambient humidity, frequency of water exposure, constructive quality (stitching, leather thickness), and maintenance (periodic cleaning, weekly rest). FKM rubber straps last 6-8 years if protected from direct UV rays.