Strap for Aquis Date 39.5 Stainless Steel / Green / Calf

The lug width is 20mm. This measurement refers to the distance between the two lateral lugs of the case where the strap attaches. It is a standard dimension among integrated Metal Expander lugs, but verification before purchase is essential to ensure proper fit with any aftermarket strap.

We recommend three primary options: (1) alligator in black or chestnut brown, which emphasises the formal purity of the case whilst maintaining elegance in formal contexts; (2) NATO in navy blue or grey, for sporting dynamics without sacrificing aesthetic simplicity; (3) grey rubber, for marine environments where humidity demands zero-maintenance durability. Selection depends on intended use: diving, professional, or hybrid.

The Aquis features non-spring integrated Metal Expander lugs. Strap replacement requires: (1) a stainless steel spring bar tool to prevent case scratching; (2) positioning the tool in the lateral lug opening; (3) controlled pressure to push the lateral pin and create clearance; (4) extraction of the old strap and insertion of the new one using the inverse procedure. This operation takes approximately five minutes if the new strap is already cut to 20mm width.

Yes, fully compatible. Any strap in leather, canvas, or rubber cut to 20mm width fits the integrated lugs without adapters. Always verify that the new strap has coherent thickness (typically 4–5mm for leather) so the case-to-strap transition remains symmetrical. Excessively thick or thin straps distort the proportional aesthetics of the total assembly.

An artisanal-quality leather strap (alligator or vegetable-tanned calf) typically lasts 3–4 years with moderate daily use (5–6 days weekly, not exposed to direct shower contact). The Aquis, being a diving instrument, exposes the strap to mechanical stress and saline humidity. We recommend rotation with alternative straps (NATO, rubber) to extend natural leather longevity to 5–6 years. Biannual maintenance with vegetable-based protective balm slows natural oxidation.