Oris · Divers 65

Strap for Divers Sixty-Five 40 Stainless Steel / Bronze / Black / Calf

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 7707 4354-07 5 20 55
FamilyDivers 65
MovementOris caliber Oris 733 hours, minutes, seconds | date
Year2018 - 2021
CaseBronze, Stainless 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 Divers 65 01 733 7707 4354-07 5 20 55

Selected for the 20 mm lug width

All 20 mm straps →

The Divers 65 01 733 7707 4354-07 5 20 55, seen from the bench

The Oris Divers Sixty-Five 40 is a contemporary reinterpretation of authentic dive watches from the 1960s, featuring a 40mm case in stainless steel and bronze. Powered by the Oris caliber 733 movement, it includes hours, minutes, seconds, and date function. The watch has a 20mm lug width and a screw-down crown for reliable water resistance. The bronze develops a natural patina over time through oxidation and interaction with salt water, making each watch unique.

Frequently asked questions

What is the lug width of the Oris Divers 65 01 733 7707 4354-07 5 20 55?

The lug width of the Oris Divers 65 01 733 7707 4354-07 5 20 55 is 20 millimetres. This specific dimension determines compatibility with straps and bracelets. You can verify this by measuring the linear distance between the two lugs using a digital calliper, or by consulting the marking engraved on the case itself.

What strap is best suited for the Oris Divers 65 01 733 7707 4354-07 5 20 55?

For the Divers 65, we recommend a premium leather strap with vegetable tanning—alligator or natural calf—which enhances the raw character of the bronze case. Alternatively, a NATO strap in technical fabric ensures functionality in aquatic environments, whilst FKM rubber represents the purist and fully waterproof option. Avoid synthetic leather or varnished finishes: the Divers 65 deserves material authenticity.

How do I change the strap on an Oris Divers 65?

Remove the watch from your wrist and place it on a stable surface. Use a small screwdriver or dedicated tool to remove the pins securing the current strap to the case lugs. Once the pins are extracted, discard the old strap. Insert the new strap, align the holes, and reinsert the pins. Verify that the strap is firmly secured before wearing the watch.

Can I use aftermarket straps on the Oris Divers 65 01 733 7707 4354-07 5 20 55?

Yes, provided the strap is compatible with the 20-millimetre lug width. High-quality artisanal aftermarket straps often deliver superior results compared to official straps, allowing aesthetic and material customization. Ensure the strap is sourced from reliable manufacturers specializing in luxury watch straps, thereby guaranteeing durability and precision craftsmanship.

How long does a leather strap last on the Oris Divers 65?

Durability depends on usage intensity, climate conditions, and tanning quality. A premium leather strap with vegetable tanning can last 2–4 years with daily wear, or up to 5–7 years with moderate use. Frequent exposure to saltwater or chlorine reduces lifespan; in such cases, FKM rubber is preferable. Leather ages naturally: initial creasing is normal and part of the aesthetic patina's charm.

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