Oris
Aquis 01 733 7730 4185-Set RS— lug 20mm
Oris Aquis 01 733 7730 4185-Set RS: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 20mm lug width to preserve the original sartorial balance."
Technical Specifications
Oris 01 733 7730 4185-Set RSThe essential strap measurement.
Browse 20mm straps →01 733 7730 4185-Set RS
Oris caliber Oris 733 Hours, Minutes, Seconds | Date
The Heritage
Compatible Straps
Selected for the 20mm lug width of the Aquis
FAQ
What is the lug width of the Oris Aquis 01 733 7730 4185-Set RS?
The Oris Aquis 01 733 7730 4185-Set RS features a 20mm lug width, standard in professional Swiss diver watches. This width is determined by case geometry and the requirement for secure anchoring under stress. To verify compatibility, measure the distance between the two spring bars on the case: it must be exactly 20mm. An undersized strap will slip; an oversized strap will not fit into the case lugs.
What is the best strap for the Oris Aquis 01 733 7730 4185-Set RS?
The choice depends on intended use. For formal aesthetics: alligator leather or vegetable-tanned calf. For authentic water sports: woven polyamide NATO strap or vulcanised rubber, which resist moisture and provide maximum security. Alligator offers elegance and decade-long durability thanks to dense protein fibres; rubber is favoured by professionals who alternate office and diving environments. Milano Straps offers all variants customisable online.
How do you change the strap on the Oris Aquis?
The spring bars on the Aquis case are accessible from the back of the current strap. Use a spring bar remover tool (approximately 1.5mm) to compress the pin from one side, gently levering until it exits the case groove. Repeat on the other side. To install the new strap, insert the pins into the case lugs and press until they click into position. If the pins are stiff, do not force: a drop of light oil facilitates movement. Perform this operation on a soft surface (towel) to prevent scratching.
Which aftermarket straps are compatible with the Oris Aquis 01 733 7730 4185-Set RS?
Any strap with a 20mm lug width is compatible. On Milano Straps you will find vegetable-tanned calf, alligator, shell cordovan, woven polyamide NATO straps, and vulcanised rubber—all in 20mm. Ensure the strap is equipped with removable spring bars (not glued) to enable swapping without damage. Milano Straps' artisanal straps offer colour customisation and buckle options (deployante, keeper, butterfly buckle) to perfectly suit your style and functional requirements.
How long does a leather strap last on the Oris Aquis?
Longevity varies by material and use. Vegetable-tanned calf, if not exposed to constant moisture, lasts 5–7 years with daily wear. Alligator, thanks to denser protein fibres, reaches 10–15 years of lifespan. Vulcanised rubber has no time limit: it does not degrade biologically and remains stable indefinitely even after repeated immersion. A NATO strap lasts 5–10 years depending on post-immersion treatment (fresh-water rinsing and rapid drying are recommended). Marine environments accelerate deterioration: a leather strap regularly exposed to saltwater requires periodic cleaning and conditioning to extend service life. Milano Straps provides maintenance advice with every purchase.