Strap for Oris Aquis 01 400 7790 4150

The Oris Aquis 01 400 7790 4150 features a lug width of 23 millimetres. This is the standard construction specification for this particular reference. The lug width determines compatibility with replacement straps: any 23mm strap will correctly fit onto the spring bars of the case.

The choice depends on intended use and aesthetic preference. For formal occasions, an alligator or vegetable-tanned calf leather brings sophistication. For everyday versatility and water resistance, a NATO in Cordura nylon—grey or navy—is ideal. For frequent diving, a silicone rubber strap offers superior grip and durability. The robust 43mm Aquis case accommodates all these materials with balanced proportions.

The Oris Aquis is equipped with spring bars on the case lugs. To remove the current strap: place the watch on a soft pad, insert the spring bar removal tool into the small recess of the lug, and push downward to compress the spring. Once released, the strap slides away. To install a new strap: insert the spring bar into the slots of the new strap, position the bar ends into the case recesses, and press gently until you feel the locking click. The process takes under a minute with practice.

Yes, provided the strap is constructed to adequate quality standards and the lug width is exact (23mm for the 01 400 7790 4150). Artisanal straps from specialist ateliers, crafted with premium materials and controlled finishing, are entirely compatible and often superior to original straps in terms of customisation and build quality. Always verify that the spring bars are robust and correctly secured.

A quality leather strap (alligator, calf, or shell cordovan) subject to daily wear without prolonged exposure to fresh water or chlorine typically lasts 18–36 months. Lifespan varies based on usage intensity, ambient humidity, cleaning frequency, and water-repellent treatment applied. A NATO strap in Cordura nylon, by contrast, persists beyond five years with proper care. To extend the life of a leather strap, dry it after water exposure and occasionally apply a water-repellent protectant formulated for natural leather.