Oris · Aquis

Strap for Aquis Date 40 Stainless Steel / Silver / Bracelet

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter40 mm
Reference01 733 7676 4141-07 8 21 10P
FamilyAquis
MovementOris caliber Oris 733 Hours, Minutes, Seconds | Date
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

The Aquis 01 733 7676 4141-07 8 21 10P, seen from the bench

The Oris Aquis Date 40 Stainless Steel model (01 733 7676 4141-07 8 21 10P) features a 40mm stainless steel 316L case with integrated lugs and a 20mm lug-to-lug distance. It is powered by the Oris 733 automatic movement, an ETA-based caliber assembled and regulated to proprietary standards at the Swiss manufacture. The unidirectional bezel, screw-down crown, and date window at 3 o'clock complete the specifications of this contemporary diving instrument from the Aquis collection.

Frequently asked questions

What is the lug width of the Oris Aquis 01 733 7676 4141-07 8 21 10P?

The lug width of the Oris Aquis 01 733 7676 4141-07 8 21 10P is 20mm. This measurement refers to the inner-to-inner distance between the two lugs that are integrally welded to the case. It is essential to verify this dimension before ordering an aftermarket strap, as the Aquis does not utilise removable lugs in the standard fashion.

Which strap do you recommend for the Oris Aquis 01 733 7676 4141-07 8 21 10P?

The choice depends on intended use: for formal settings, we recommend natural tanned alligator or vegetable-tanned calf leather, which complement the satin-brushed steel case. For sporting or marine environments, opt for ballistic nylon NATO or FKM vulcanised rubber—materials that resist salt water and dry quickly without compromising ergonomic comfort.

How do I change the strap on the Oris Aquis 01 733 7676 4141-07 8 21 10P?

The Aquis features integrated, non-removable lugs. To change the strap, you must thread the new strap terminals beneath the lugs—a procedure requiring delicate tools (pin extractors designed for integrated lugs) and careful technique. We recommend consulting a qualified watchmaker or Casati Milano's service to ensure precision and protect the case from scratches during the operation.

Is an aftermarket strap compatible with the Oris Aquis 01 733 7676 4141-07 8 21 10P?

Yes, provided it is manufactured with careful attention to the integrated lug geometry. The strap must feature terminals calibrated to 20mm inner width, capable of adhering perfectly to Oris's proprietary configuration without play or slack. Milano Straps offers customisable 20mm straps online; select the Aquis model or contact the Casati Milano atelier for bespoke consultation.

How long does a leather strap last on the Oris Aquis 01 733 7676 4141-07 8 21 10P?

Leather strap longevity depends on tanning method and usage patterns: vegetable-tanned calf, worn daily, typically withstands 2–3 years before displaying significant wear or requiring maintenance (reconditioning, stitching replacement). Natural alligator, being denser, can exceed 4–5 years of serviceable life. Avoid prolonged immersion in fresh or salt water to extend lifespan; for frequent water exposure, select rubber or NATO alternatives instead.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only