Oris · Divers 65

Strap for Divers Sixty-Five 40 Chronograph Stainless Steel / Silver - Green / Bracelet

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 771 7791 4051-07 8 20 18
FamilyDivers 65
MovementOris caliber Oris 771 Additional 12 hours Hand (adjustable), hours, minutes, small seconds | date | Chronograph
Year2025
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 Divers 65 01 771 7791 4051-07 8 20 18

Selected for the 20 mm lug width

All 20 mm straps →

The Divers 65 01 771 7791 4051-07 8 20 18, seen from the bench

The Oris Divers 65 01 771 7791 4051-07 8 20 18 is a dive watch with a 40 mm stainless steel case and a satin finish. It features a black satin dial with applied white gold indices, a full-profile Mercedes hand, and a cylindrical crown with knurling. The watch is water-resistant to 100 meters and certified ISO 6425. It is powered by the Oris caliber 771 manual-wind movement with a 28,800 A/h frequency, large date window at 3 o'clock, small seconds at 9 o'clock, and an adjustable 12-hour subdial. The 20 mm lug width is characteristic of this model.

Frequently asked questions

What is the lug width of the Oris Divers 65 01 771 7791 4051-07 8 20 18?

The Divers 65 01 771 7791 4051-07 8 20 18 features a lug width of 20 millimetres. This dimension reflects the original proportions of 1960s diving instruments and must be measured precisely between the case lugs to ensure compatibility with aftermarket straps.

Which strap is recommended for this Oris model?

For the Divers 65, we recommend three primary options: natural alligator (dark brown or black) for formal wear, satin-finished polyamide NATO for recreational diving, and FKM rubber for saline environments. Strap selection depends on intended use and aesthetic preference whilst maintaining coherence with the brushed steel case.

How do you change the strap on the Oris Divers 65?

Strap replacement requires minimal tools: remove the lugs by disengaging the spring bars using a dedicated extractor or thin blade. Insert the bars into the new strap, aligning the lugs, and secure the locking mechanism. For delicate materials (alligator), we recommend professional replacement at a specialised atelier such as Casati Milano.

Which aftermarket strap is compatible with the 01 771 7791 4051-07 8 20 18?

Any strap manufactured for 20mm lug width is compatible. Milanostraps offers a comprehensive selection of leather (alligator, vegetable-tanned calf), polyamide NATO and vulcanised FKM rubber, all certified for this width and available with rapid dispatch.

What is the lifespan of a leather strap for the Divers 65?

A high-quality alligator or vegetable-tanned calf strap has a lifespan of 3–5 years under moderate daily use. If the Divers 65 is employed for frequent diving, leather longevity reduces to 12–18 months. FKM rubber guarantees 8–10 years without degradation.

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