Technical Archive

Oris
Aquis 01 733 7730 4185-Set MB— lug 20mm

Oris Aquis 01 733 7730 4185-Set MB: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Aquis Clipperton Limited Edition / Bracelet

Artisanal Note

"This model requires a precise 20mm lug width to preserve the original sartorial balance."

Technical Specifications

Oris 01 733 7730 4185-Set MB
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

01 733 7730 4185-Set MB

Movement

Oris caliber Oris 733 Hours, Minutes, Seconds | Date

The Heritage

The Oris Aquis reference 01 733 7730 4185-Set MB is a diver's watch equipped with the Oris 733 automatic caliber. The movement provides central hour, minute, second and date indication. The case features a robust construction designed for professional underwater use.

FAQ

What is the lug width of the Oris Aquis 01 733 7730 4185-Set MB?

The lug width of the Oris Aquis 01 733 7730 4185-Set MB is 20mm. This measurement represents the internal space between the lugs of the case. A compatible strap must measure exactly 20mm in width to fit correctly into the Oris lugs without play or forcing. We recommend verifying with a digital calliper before ordering.

What is the best strap for the Oris Aquis 01 733 7730 4185-Set MB?

The choice of the best strap depends on your intended use. For those wearing the Aquis primarily in formal and casual settings, an alligator or vegetable-tanned calf strap offers elegance and evolving patina. If you intend to use it frequently in water or salt-spray environments, a vulcanised natural rubber or NATO fabric strap is more practical as it dries quickly and resists salt corrosion. We recommend evaluating your lifestyle before deciding.

How do I change the strap on an Oris Aquis 01 733 7730 4185-Set MB?

To change the strap, position the watch with the lugs facing upward and use a spring bar tool with precision. Insert the tool tip into the gap between the case lug and the strap, then gently compress the internal spring until the pin is released. Repeat from the opposite side. Insert the new strap by pushing the lug pin into the hole until you hear a click. Never force: if you encounter resistance, check the alignment.

Are there aftermarket straps compatible with this Oris model?

Yes, numerous aftermarket straps compatible with the 20mm lug width are available. Always verify that the strap is specifically dimensioned for 20mm and that the lugs are engineered to support the weight and thickness of a 43.5mm stainless steel and ceramic case. Quality-certified straps with vegetable tanning or natural rubber maintain the aesthetic and functional integrity of your Aquis over time.

How long does a leather strap last on the Oris Aquis 01 733 7730 4185-Set MB?

A quality leather strap with vegetable tanning, subjected to moderate daily wear, has an average lifespan of 3-5 years before the leather begins to show significant signs of wear (cracking, grain loss). If you wear the Aquis 6-7 days per week and expose it frequently to water, sweat and heat, the lifespan may reduce to 2-3 years. Vulcanised natural rubber, by contrast, maintains its elastic properties for 4-6 years under regular diving use.