Milano Straps
← Oris

ITENDEFRES

SearchCart
Menu

Oris · Divers 65

Strap for Divers Sixty-Five 40 Social Club Edition / Chicago

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

20mm
20 mm strapsAll Oris
Lug width20 mm
Case diameter40 mm
Reference01 733 7707 4051 OSC-CHI-Set
FamilyDivers 65
MovementOris caliber Oris 733 ND hours, minutes, seconds
Year2022
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

View →

Straps for the Divers 65 01 733 7707 4051 OSC-CHI-Set

Selected for the 20 mm lug width

All 20 mm straps →

The Divers 65 01 733 7707 4051 OSC-CHI-Set, seen from the bench

The Oris Divers Sixty-Five 01 733 7707 4051 OSC-CHI-Set is a modern reinterpretation of an iconic 1960s professional diving watch. The 40 mm stainless steel case houses the caliber Oris 733 ND, beating at 4 Hz with hours, minutes, and seconds functions. It features a domed Hesalite crystal, unidirectional bezel, and 300 meters water resistance. The 20 mm lug width ensures compatibility with aftermarket straps and derives from ergonomic proportions balancing the 40 mm case diameter.

Frequently asked questions

What is the lug width of the Oris Divers 65 01 733 7707 4051 OSC-CHI-Set?

The lug width of the Oris Divers 65 01 733 7707 4051 OSC-CHI-Set is 20 millimetres. This measurement determines compatibility with aftermarket straps: verify it by measuring the internal space between the two lugs on the case before purchasing a replacement strap.

Which strap do you recommend for the 40mm Oris Divers 65?

A strap in vegetable-tanned leather in brown or black enhances the vintage vocation of the Divers Sixty-Five; for a more sporty profile, we recommend a NATO or handcrafted rubber strap. An alligator strap in black elevates formal context without betraying the diving heritage. Your choice depends on predominant use: marine, urban, or formal.

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

Remove the watch from your wrist. Locate the spring bars (elastic pins holding the strap to the lugs). Using a flat-tipped tool or dedicated spring bar remover, gently compress the pin to release one end of the strap. Insert the new strap into the spring bars, ensuring the pins click into position. Check that the strap is securely attached by gently pulling.

Is an aftermarket strap with 20mm lug width compatible with reference 01 733 7707 4051 OSC-CHI-Set?

Yes, any strap with a 20 millimetre lug width is compatible. Always verify this measurement on the product before purchase. MilanoStraps artisanal straps for 20mm lug width have been validated for this Oris model.

What is the average lifespan of an artisanal leather strap?

A strap in vegetable-tanned leather, if properly maintained, lasts an average of 3–5 years with daily wear. Natural patina develops progressively, creating aesthetic uniqueness. Salt moisture (marine environments) reduces longevity; in such cases, prefer rubber or NATO straps. Periodic maintenance (cleaning, conditioning) significantly extends strap life.

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