Strap for Aquis Date 39.5 Stainless Steel / Black / Bracelet

The lug width (misura ansa) of the Oris Aquis 01 733 7732 4134-07 8 21 05PEB is precisely 20mm. This dimension represents the internal distance between the two case attachment pins and must be respected rigorously to ensure perfect fitment and absence of play or excessive tension. A strap with inferior (18mm) or superior (22mm) lug width would result in instability and accelerated wear on the attachment points.

For the Oris Aquis Ceramic, the most appropriate strap depends on the intended usage. If destined for regular diving, vulcanised rubber with 4mm thickness offers absolute resistance to chlorine and salt. For sophisticated daily wear, alligator leather with vegetable tanning creates an elegant contrast with high-tech ceramic. The NATO strap in technical nylon represents the versatile compromise for those alternating aquatic environments with urban contexts, being easily interchangeable.

Strap replacement requires a specific professional tool: a spring bar tool of high quality. Position the tool from the inside of the lug, gently push the elastic pin upward, and extract the old strap. Repeat on the second side. To insert the new 20mm strap, align the holes at the ends, insert the elastic pin, and verify it is perfectly seated. Avoid hammering and improvised tools that could scratch the ceramic.

Yes. Milano Straps offers a complete collection of artisanal 20mm straps compatible with this model, crafted to specifications for perfect fitment. All straps undergo dimensional tolerance verification. Available in alligator leather, chromexcel calf, NATO, technical rubber, and Cordura canvas, customisable online with rapid delivery.

The lifespan of a natural leather strap varies based on immersion frequency and tanning type. If used in occasional freshwater contexts, a vegetable-tanned strap maintains structural integrity for 3–5 years. In intense saline environments (sea, chlorinated pools), degradation accelerates to 1–2 years. For those practising frequent diving, it is advisable to alternate rubber straps (indefinitely durable) with leather straps, preserving the latter for urban contexts where they do not undergo chemical stress.