Strap for Oris Aquis 01 400 7790 4135

The Oris Aquis reference 01 400 7790 4135 features a lug width of 23mm, measured as the internal distance between the two lugs of the case. This measurement is specific to this model and falls outside standard specifications (18, 20, 22mm), requiring purpose-made straps. Always verify with callipers to prevent incompatibility issues.

Selection depends on intended use. For formal elegance: alligator in dark brown or vegetable-tanned calf leather. For versatile sport wear: vulcanised rubber or polyester NATO. Alligator offers natural breathability and aged patina; vegetable-tanned leather develops character over time; rubber ensures complete water resistance. All available in 23mm lug width.

Remove the spring bars that connect the strap to the case lugs using a dedicated spring bar tool to compress and release the pin. Align the new strap with the case lugs and insert the spring bars, ensuring they click securely into place. If the strap features a steel deployante, verify it is compatible with the 23mm lug width specification.

Yes, provided it strictly adheres to the 23mm lug width specification. Numerous specialised craftsmen produce alligator, calf, shell cordovan and rubber straps in this specific measurement. Always verify technical specifications before purchase and prefer suppliers guaranteeing compatibility with standard 1.8mm spring bar pins.

Durability depends on frequency of water exposure and leather quality. A vegetable-tanned alligator strap, used occasionally in aquatic environments, maintains structural integrity for 3–5 years. Regular exposure to fresh or salt water reduces lifespan to 1–2 years. For predominantly diving use, vulcanised rubber or NATO straps are recommended, as they resist moisture degradation. Always dry the strap after prolonged water contact.