Strap for Aquis Date 40 Stainless Steel / Silver / Rubber

The Oris Aquis 01 733 7676 4141-07 4 21 34 features a lug width of 21 millimetres. This width enables versatile compatibility with artisan straps in leather, NATO, rubber and metal, whilst maintaining balanced proportions with the 40 mm case. It is a canonical measurement within the Aquis collection, designed to deliver elegance without compromising comfort and functionality.

The ideal strap depends on intended use. For formal contexts, vegetable-tanned alligator or shell cordovan offer refinement with patina that evolves over time. For diving and water sports, FKM rubber resists salts and UV exposure. A military NATO provides informal versatility. A metal strap with deployante clasp completes the stainless steel collection. All materials are compatible with the 21mm lug width.

To change the strap, remove the spring bars connecting the lug to the strap. Use a dedicated spring bar extractor tool (available from qualified watchmakers) to gently push the bar laterally, freeing the lug from its seat. Insert the new strap by sliding the lug through the spring bars until you hear the engagement click. If the lug does not slide smoothly, verify compatibility of the 21mm width and correct centring of the spring bars.

Yes, provided the strap is specifically dimensioned for 21mm lug width. Milanostraps offers a comprehensive collection of 21mm straps in artisan leather (alligator, calf, shell cordovan), NATO and rubber, all tested and guaranteed for full compatibility. A construction tolerance of ± 0.5 mm is acceptable; always verify that the strap slides smoothly through the lugs without lateral play.

A high-quality vegetable-tanned leather strap (such as those crafted artisanally by Milanostraps) has an average lifespan of 3–5 years with daily wear, extending to 7–10 years with occasional use. Longevity depends on sun exposure, humidity and perspiration. Shell cordovan is more robust, lasting 10–15 years. FKM rubber maintains elasticity for 5–8 years. Regular maintenance (cleaning, leather conditioning) significantly extends service life.