Oris · Big Crown

Strap for Big Crown Pointer Date 40 Stainless Steel / Turquoise / 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 7798 4065-07 8 20 06
FamilyBig Crown
MovementOris caliber Oris 754 hours, minutes, seconds | date
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 Big Crown 01 754 7798 4065-07 8 20 06

Selected for the 20 mm lug width

All 20 mm straps →

The Big Crown 01 754 7798 4065-07 8 20 06, seen from the bench

The Big Crown Pointer Date 40 Stainless Steel represents an authentic heir to Swiss aviator watchmaking tradition. This model houses the Oris 754 calibre, a manual-winding mechanical movement. The 40mm stainless steel case ensures legibility and functionality typical of classic aviator watches. The 20mm lug width is the ergonomic standard for this category, precisely engineered for secure strap integration without compromise.

Frequently asked questions

What is the lug width of the Oris Big Crown 01 754 7798 4065-07 8 20 06?

The lug width is 20mm. This standard is proportionate to the 40mm case and is typical for aviator models in this category. Verify compatibility by measuring the case lugs perpendicularly with a digital caliper.

Which strap pairs best with the Oris Big Crown 01 754 7798 4065-07 8 20 06?

A vegetable-tanned alligator strap or cognac calf leather accentuates the Big Crown's classical aviator heritage. For a more functional approach, navy blue NATO straps reference military origins. Natural rubber remains the tactical choice for aquatic environments.

How do you change the strap on the Oris Big Crown 01 754 7798 4065-07 8 20 06?

Use a spring bar tool to lightly compress the internal spring of the lug. Position the tool in the lateral slot, compress and slide the strap outward. Reverse the procedure to mount the new strap.

Which aftermarket straps are compatible with the 20mm lug width of the Big Crown?

All straps with 20mm lug width are compatible. We recommend models with stainless steel buckles or deployante clasps for aesthetic coherence. Avoid straps with thick nylon cores, which may create excessive creasing on a watch of this thickness.

How long does a leather strap last on the Oris Big Crown 01 754 7798 4065-07 8 20 06?

A quality leather strap (alligator, vegetable-tanned calf) lasts 3 to 5 years with moderate daily use. Longevity depends on exposure to moisture, perspiration and maintenance. Rotation with other straps extends the overall lifespan of the accessory.

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