Oris · Aquis

Strap for AquisPro Date Calibre 400 Titanium - DLC / Black / Rubber

Takes 26 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width26 mm
Case diameter50 mm
Reference01 400 7767 7754-07 426 64BTEB
FamilyAquis
MovementOris caliber Oris 400 hours, minutes, seconds | date
Year2021 - 2024
CaseTitanium, Ceramic

Spring bar

Swiss Standard universal spring bars

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

The Aquis 01 400 7767 7754-07 426 64BTEB, seen from the bench

The Oris Aquis is a diver's watch powered by the Oris 400 automatic caliber with hour, minute, second and date indications. The model features 26mm lugs and an integrated strap. The case is made of materials resistant to marine corrosion according to the Aquis collection standards.

Frequently asked questions

What is the exact lug width of the Oris Aquis 01 400 7767 7754-07 426 64BTEB?

The lug width of the 01 400 7767 7754-07 426 64BTEB is 26mm. This measurement refers to the width of the strap at the attachment points (spring bar holes) on the case lugs. Verifying this dimension before purchasing an aftermarket strap is essential to avoid mechanical incompatibility.

Which strap is most suitable for this titanium Oris Aquis?

For the Oris Aquis 01 400 7767 7754-07 426 64BTEB, we recommend vegetable-tanned leather straps for elegant daily wear, robust NATO straps, or FKM rubber for diving and marine environments. The choice depends on intended use: the titanium case pairs particularly well with naturally aged leather or synthetics with a satin finish.

How do I change the strap on this watch?

Remove the strap by extracting the spring bars (pins) from the case lugs using a dedicated spring bar tool. Place the watch on a soft surface, gently insert the tool into the lateral holes of the lugs, compress the internal spring, and slide out the old strap. Position the new 26mm strap, ensuring the pins are fully seated in the lug holes.

Can I use an aftermarket strap on this Oris?

Yes, any strap with a 26mm lug width is mechanically compatible with the 01 400 7767 7754-07 426 64BTEB. However, we recommend choosing straps of elevated build quality with finishes coherent to the titanium and ceramic case to preserve the watch's aesthetic and functional value.

How long does a leather strap typically last on a watch like this?

An alligator strap with vegetable tanning typically lasts 3-5 years with moderate daily wear, provided you avoid prolonged exposure to saltwater and keep it dry. Naturally treated leather develops characteristic patina over time, increasing aesthetic appeal. FKM rubber straps last 5-7 years, while robust nylon NATO straps can exceed 10 years.

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