Oris · Aquis

Strap for Aquis Date 36.5 Bracenet

The Aquis Date 36.5 Bracenet takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

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Lug width18 mm
Case diameter37 mm
Reference01 733 7770 4137-07 8 18 05P
FamilyAquis
MovementOris caliber Oris 400 ND Hours, Minutes, Seconds | Date
Year2023 - 2024
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 01 733 7770 4137-07 8 18 05P

Selected for the 18 mm lug width

All 18 mm straps →

The Aquis 01 733 7770 4137-07 8 18 05P, seen from the bench

The Oris Aquis 01 733 7770 4137-07 8 18 05P is a 36.5mm stainless steel diver watch powered by the Oris 400 ND automatic movement with 38-hour power reserve. It features a unidirectional bezel, anti-reflective sapphire crystal, date window at 3 o'clock, and water resistance to 300 meters. The 18mm lug width enables compatibility with a wide range of aftermarket straps, from NATO to leather options, maintaining balanced proportions without oversizing.

Frequently asked questions

What is the lug width of the Oris Aquis 01 733 7770 4137-07 8 18 05P?

The lug width of this model is 18mm. It is measured by determining the distance between the case attachment lugs at the junction point with the strap. This configuration allows the use of a wide range of artisanal watch straps.

Which strap is most suitable for the Oris Aquis 36.50mm?

The choice depends on intended use: an alligator strap in vegetable tanning (cognac brown) offers elegance for formal settings; a vintage calf leather in grey smoke ensures daily versatility with evolving patina; a NATO in cordura guarantees aquatic reliability and resilience; an FKM rubber strap is essential for recreational diving. For technical excellence, shell cordovan develops an inimitable patina over more than a decade.

How do I change the strap on my Oris Aquis?

Removing the strap requires a spring bar removal tool. Position the small blade of the tool perpendicular to the pin and apply gentle lateral pressure whilst lifting the pin upward simultaneously. Once both pins are extracted, the original strap will release. Insert the new pins into the fresh strap and reinsert into the case until the locking click is heard.

Can I use an aftermarket compatible strap with this lug width?

Yes, absolutely. The 18mm lug width is standard and permits the use of any certified artisanal watch strap for this measurement. High-quality aftermarket straps, crafted in vegetable-tanned leather, waxed cordura, FKM rubber, or premium materials such as shell cordovan, offer superior design individuality compared to generic OEM straps.

How long does a leather strap last on this watch?

The lifespan of a leather strap depends on material and usage. A naturally seasoned calf leather develops appreciable patina over 3-5 years of daily wear, then requires protective treatment. A quality alligator strap in vegetable tanning reaches 5-7 years. Shell cordovan, owing to its superior density, exceeds a decade. An FKM rubber strap maintains reliable elasticity for 4-6 years before hardening. Regular maintenance (gentle cleaning, conditioning every 6 months) significantly extends longevity.

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

The atelier's website: casatimilano.com