Oris · Big Crown

Strap for Big Crown Timer Stainless Steel / Black / Bracelet

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter44 mm
Reference01 735 7660 4064-07 8 22 76
FamilyBig Crown
MovementOris caliber Oris 735 hours, minutes, seconds | date, day
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 Big Crown 01 735 7660 4064-07 8 22 76

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Big Crown 01 735 7660 4064-07 8 22 76, seen from the bench

The Oris Big Crown 01 735 7660 4064-07 8 22 76 is the contemporary evolution of an icon born in 1938 for aviation. The oversized crown allowed pilots to adjust the time while wearing leather gloves. This stainless steel model features a 44mm case diameter and houses the Oris caliber 735 automatic movement with hours, minutes, seconds, date and day display. The 22mm lug width is a technical standard that balances the large case, ensuring precise compatibility with aftermarket straps.

Frequently asked questions

What is the lug width of the Oris Big Crown 01 735 7660 4064-07 8 22 76?

The lug width is 22 millimetres. This technical specification defines the width of the strap that must be fitted. The 22mm dimension ensures harmonious proportions on the 44mm case of the Big Crown and represents the standard for this specific model.

Which strap is most suitable for the Oris Big Crown 01 735 7660 4064-07 8 22 76?

It depends on your intended use. For those seeking continuity with aviation heritage, vegetable-tanned leather (Havana, dark brown) is the authentic choice. Alligator introduces formal elegance and maximum longevity. Ballistic NATO fabric ensures sport versatility. Rubber is ideal for humid environments or professional settings. The stainless steel case of the Big Crown accommodates all these materials without aesthetic conflict.

How do you change the strap on the Oris Big Crown 01 735 7660 4064-07 8 22 76?

Each lug on the case houses a small spring bar that holds the strap in place. Using a dedicated tool (spring bar tool) or fine needle, you compress the pin on one side, extract the old strap, and insert the new one by sliding the pin into the slots on the new lugs. The operation requires care to avoid scratching the case.

Are aftermarket straps compatible with the Oris Big Crown 01 735 7660 4064-07 8 22 76?

Yes, provided they respect the 22mm lug width specification. Quality artisanal aftermarket straps (leather, alligator, fabric) maintain the same proportions as the original, often enhancing its aesthetic character. It is essential to verify the width in millimetres at the passant or directly with the retailer before purchase.

How long does a leather strap last on a watch like the Oris Big Crown 01 735 7660 4064-07 8 22 76?

A vegetable-tanned leather strap, used regularly, has an average lifespan of 4-7 years. Durability depends on ambient humidity, wrist movement, and maintenance. Prolonged water exposure accelerates wear. With care (periodic drying, occasional protective treatments), quality Tuscan leather develops a desirable patina. Alligator, structurally more resistant, 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