Oris · Big Crown

Strap for Big Crown Pointer Date 40 Stainless Steel / Black / 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 754 7679 4064-07 8 20 30
FamilyBig Crown
MovementOris caliber Oris 754 hours, minutes, seconds | date
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 01 754 7679 4064-07 8 20 30

Selected for the 20 mm lug width

All 20 mm straps →

The Big Crown 01 754 7679 4064-07 8 20 30, seen from the bench

The Big Crown represents one of Oris' historic collections, characterized by the oversized winding crown typical of aviator watches. It features the Oris 754 caliber with hour, minute, second and date functions. The 20mm lugs complete the functional design of the timepiece.

Frequently asked questions

What is the lug width of the Oris Big Crown 01 754 7679 4064-07 8 20 30?

The lug width (distance between the suspension pins) is 20mm. This measurement is critical for ensuring strap compatibility. Always verify this dimension before purchasing an aftermarket strap.

What is the best strap for the Oris Big Crown 01 754 7679 4064-07 8 20 30?

There is no absolute "best", but rather conceptual choices. A dark brown alligator amplifies classic heritage; vegetable-tanned leather offers sustainability and evolving patina; a NATO canvas provides sporty versatility. The choice depends on your personal style and intended use.

How do I change the strap on my Oris Big Crown 01 754 7679 4064-07 8 20 30?

The strap is secured via two spring bars that pass through the lug openings. Remove the bars with a spring bar tool, then slide the strap out of the lugs. Insert the new strap, position the bars, and ensure they lock firmly in place. Avoid excessive pressure that could damage the suspension rings.

Can I use an aftermarket strap on my Oris Big Crown 01 754 7679 4064-07 8 20 30?

Yes, absolutely. Any strap with a 20mm lug width is compatible. Milanostraps.it offers a selection of artisanal straps in leather, fabric and rubber, all certified for this width and crafted to sartorial standards.

How long does a leather strap last on an Oris Big Crown 01 754 7679 4064-07 8 20 30?

Durability depends on material and usage. An alligator with chrome tanning, worn daily under normal conditions, typically lasts 3–5 years. A vegetable-tanned calf, more porous, requires frequent maintenance but matures beautifully over time. Prolonged exposure to moisture and heat accelerates ageing. A NATO or rubber strap offers superior durability, often 5–7 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