Oris · Aquis

Strap for Aquis Date 41.5 Sun Wukong Artist Edition

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter42 mm
Reference01 400 7769 4185-Set
FamilyAquis
MovementOris caliber Oris 400 ND 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

Straps for the Aquis 01 400 7769 4185-Set

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Aquis 01 400 7769 4185-Set, seen from the bench

The Oris Aquis represents the Swiss brand's line of dive watches, equipped with the automatic Oris 400 caliber that offers hour, minute, second and date indication. The model features 22mm lugs and is characterized by a construction oriented towards water activities.

Frequently asked questions

What is the lug width of the Oris Aquis 01 400 7769 4185-Set?

The lug width of the Oris Aquis 01 400 7769 4185-Set is 22mm. This dimension represents the international standard for wristwatches with a case diameter of 41-42mm. To verify it, measure the internal distance between the two lugs that support the original bracelet using a digital calliper.

What is the best strap for the Oris Aquis 01 400 7769 4185-Set?

The best strap depends on intended use. For refined aesthetic pairing, a vegetable-tanned leather Tuscan strap—available in Cognac Brown, Black, or Dark Brown—transforms the diver tool's character by developing natural patina over time. For aquatic environments and durability, a high-tenacity textile NATO or FKM rubber strap maintains the watch's instrumental vocation. Genuine alligator represents the ultimate option if you wish to elevate discrete luxury.

How do I change the strap on my Oris Aquis 01 400 7769 4185-Set?

Strap replacement requires extraction of the spring bars connecting the case to the bracelet. Use a spring bar tool (a specialized instrument with two thin tips) to gently depress the bar until you disengage the bracelet. Repeat on the other side. Insert the new 22mm strap by aligning the holes with the spring bar ends, then press the strap downward until it clicks into place. Verify that the strap is securely anchored on both sides.

Is an aftermarket strap compatible with the Oris Aquis 01 400 7769 4185-Set?

Yes, provided the strap is dimensioned for 22mm lug width. Quality aftermarket straps—such as those in vegetable-tanned leather, NATO, or vulcanised rubber offered by Milano Straps—are fully compatible. Verify that the strap ends are supplied with correct holes for housing the spring bars, and that the overall width (at the hole level) does not exceed 22mm; otherwise, insertion would be forced.

How long does a leather strap last on the Oris Aquis 01 400 7769 4185-Set?

A quality leather strap, crafted in vegetable tanning such as the Tuscan option, has an average lifespan of 3-5 years with moderate use (5-7 days per week). Longevity depends on humidity exposure, body perspiration, UV rays, and maintenance. A vegetable-tanned leather develops natural patina over time, improving aesthetically. To extend durability, avoid prolonged immersion and periodically apply natural oils such as lanolin. FKM rubber straps have longer service life (5-8 years), whilst textile NATO straps resist 10+ years if free from structural damage.

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