Oris · Aquis
Strap for Aquis Date 36.5 Stainless Steel / Blue - Diamond / Bracelet
Takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Straps for the Aquis 01 733 7731 4195-07 8 18 05P
Selected for the 18 mm lug width
Hammered Calfskin Strap Light Blue€98
Vintage Brown Calfskin Strap — Natural Patina€98
Hammered Pink Strap with Ecru Stitching€98
Hammered Yellow Strap with Ecru Stitching€98
Grey Hammered Leather Strap with Ecru Stitching€98
Swift Red Leather Strap€120
The Aquis 01 733 7731 4195-07 8 18 05P, seen from the bench
Frequently asked questions
What is the lug width of the Oris Aquis 01 733 7731 4195-07 8 18 05P?
The Oris Aquis 01 733 7731 4195-07 8 18 05P features an 18mm lug width, measured from inner lug to inner lug. This dimension is the constructive standard Oris established to maintain visual proportions between the 36.50mm case and integrated bracelet. To verify aftermarket strap compatibility, use a digital calliper with ±0.1mm precision, positioning it perpendicularly across the lug shoulders.
Which strap is best suited to this Aquis design and intended use?
For this diver tool watch, shell cordovan represents the optimal aesthetic and functional choice: its natural fibrous structure resists salt moisture better while developing a rich patina over time. Genuine alligator adds tactile sophistication with geometric texture contrast. For frequent water exposure, vulcanised rubber straps maintain superior grip and quick drying. Satin cotton or ripstop nylon NATO straps excel in informal daily contexts.
How do I change the strap on this watch?
The Aquis features a standard integrated lug design: identify the lateral pins securing the lug to the case shoulders. Use a dedicated push-pin tool or non-abrasive plastic lever to push the pin laterally until fully extracted. Align the new strap with the lug and reinsert the pin, ensuring symmetric seating. Avoid torsional stress during this operation to prevent lug deformation.
What aftermarket straps are compatible with this Oris Aquis?
Any handcrafted strap with an 18mm lug width is fully compatible with the Aquis 01 733 7731 4195. Milano Straps offers leather (cordovan, alligator, calf), NATO and rubber straps in 18mm, all ready to ship. Pin finish and constructive tolerance have been validated to ensure mounting without mechanical adjustment requirements.
How long does a leather strap last on this model with frequent water use?
A shell cordovan or alligator strap, with proper maintenance (post-saltwater drying, quarterly conditioning), retains structural integrity for 4–6 years of moderate-to-intensive water exposure. Vegetable-tanned leather visibly ages but remains functional. With predominantly land-based use, longevity extends to 7–10 years. Rubber straps require annual inspection for UV stress but offer superior durability in marine environments.
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.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only
