Oris · ProDiver

Strap for ProDiver Dive Control

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

Lug width26 mm
Case diameter51 mm
Reference01 774 7727 7784-Set
FamilyProDiver
MovementOris caliber Oris 774 Additional 12 Hour Hand (adjustable), Hours, Minutes, Small Seconds | Date | Chronograph
CaseTitanium, Ceramic

Spring bar

Swiss Standard universal spring bars

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

Straps for the ProDiver 01 774 7727 7784-Set

Selected for the 26 mm lug width · workshop selection

All 26 mm straps →

The ProDiver 01 774 7727 7784-Set, seen from the bench

The Oris ProDiver is a diver's watch powered by the Oris 774 automatic caliber with functions for hours, minutes, small seconds, date and chronograph. The model features a third adjustable hand for an additional 12-hour time zone. The case has 26mm lugs.

Frequently asked questions

What is the lug width of the Oris ProDiver 01 774 7727 7784-Set?

The lug width is 26mm. This measurement is specific to ProDiver models with 51mm cases and reflects the proportional architecture of the case. Always verify the distance between the two spring bars before purchasing a strap: the value must be exactly 26 millimetres. Do not attempt to force straps of smaller dimensions (20mm, 22mm) using improvised adapters.

Which strap is most suitable for the Oris ProDiver 01 774 7727 7784-Set?

The choice depends on actual usage. For frequent diving, an FKM rubber strap is the only coherent solution: it resists marine salts and oxidation. For versatile daily wear, African alligator with a titanium deployante buckle offers elegance without compromise. If you anticipate natural patina development over time, vegetable-tanned calf is the most considered choice.

How do I change the strap on the Oris ProDiver 01 774 7727 7784-Set?

Use a flathead tool (spring bar tool) to gently lift the pin from the opposite lug. Do not force: the pin must slide horizontally, not rotate. Insert the new strap by aligning the holes with the pins, then press the pin into position until it clicks. Verify the strap is fully secured before wearing the watch.

Is an aftermarket strap compatible with the Oris ProDiver 01 774 7727 7784-Set?

Yes, provided the lug width is exactly 26mm. Verify that the strap pins fit into the case lugs without forcing. Bespoke straps crafted to measure guarantee perfect compatibility and superior construction quality compared to standard industrial products. Milano Straps offers custom craftsmanship dedicated to your model.

What is the average lifespan of a leather strap for the Oris ProDiver 01 774 7727 7784-Set?

A quality leather strap (alligator, shell cordovan, calf) typically lasts 3–5 years with moderate daily use. If regularly exposed to saltwater, the lifespan reduces to 18–24 months. FKM rubber straps have superior longevity (5–7 years), though rubber gradually degrades with UV exposure. Regular maintenance (cleaning, drying, conditioning) significantly extends the useful life of any leather strap.

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