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 4034-07 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 4034-07 8 20 30

Selected for the 20 mm lug width

All 20 mm straps →

The Big Crown 01 754 7679 4034-07 8 20 30, seen from the bench

The Oris Big Crown features the automatic Oris 754 calibre with hour, minute, second, and date functions. The watch has 20mm lugs and is distinguished by the oversized crown, a hallmark of the collection. The reference 01 754 7679 4034-07 8 20 30 represents a classic aviator-inspired offering from the Swiss brand.

Frequently asked questions

What is the lug width of the Oris Big Crown 01 754 7679 4034-07 8 20 30?

The lug width of this model is 20mm, measured between the horizontal pins that protrude from the case. To verify, use a digital calliper or flexible ruler positioned between the lug attachments. This dimension is critical when purchasing compatible aftermarket straps.

What strap material is best suited to the Oris Big Crown 01 754 7679 4034-07 8 20 30?

The optimal material depends on context of use. Shell cordovan or vegetable-tanned leather develop a patina that complements the satinised stainless steel case, ensuring aesthetic coherence. For humid or sports environments, a cotton-nylon NATO strap offers practicality without compromise, whilst FKM rubber is the optimal choice for those prioritising pure functionality and cleaning ease.

How do I change the strap on the Oris Big Crown 01 754 7679 4034-07 8 20 30?

Strap replacement requires a springbar tool, a forked implement that compresses the horizontal pins (springbars) located at the strap ends. Position the tool tip on each springbar, compress inward toward the case, and slide the old strap out by extracting from the pins. Repeat in reverse with the new strap, ensuring the pins click securely into position.

Are aftermarket straps compatible with the Oris Big Crown 01 754 7679 4034-07 8 20 30?

Yes, entirely. Any quality strap with a 20mm lug width is fully compatible with this model. Oris maintains consistent width across generations, guaranteeing access to a wide selection of materials, from artisanal leather to textile NATO. We recommend verifying lug width before purchase to avoid misalignment.

How long does a leather strap last on the Oris Big Crown 01 754 7679 4034-07 8 20 30?

Durability depends on frequency of use, tanning method and maintenance. Vegetable-tanned leather of quality maintains structural integrity between 3 and 5 years with moderate daily use; shell cordovan can exceed 7 years. Regularly rinsing with tepid water, drying with a soft cloth and occasionally applying a specific conditioner 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.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only