Oris · Big Crown

Strap for Big Crown Pointer Date 40 Stainless Steel - Rose Gold / Thailand Edition

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 4381-07 8 20 32
FamilyBig Crown
MovementOris caliber Oris 754 hours, minutes, seconds | date
Year2014
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 4381-07 8 20 32

Selected for the 20 mm lug width

All 20 mm straps →

The Big Crown 01 754 7679 4381-07 8 20 32, seen from the bench

The Big Crown Oris 01 754 7679 4381-07 8 20 32 is a 40mm stainless steel pilot watch with roots tracing to 1938 and the original Luftwaffe timepiece. It features the signature oversized crown at 3 o'clock, designed for gloved operation in pressurized cockpits. The Oris 754 automatic movement powers the dial with essential functions—hours, minutes, seconds, and date—without unnecessary complexity. The 20mm lug width maintains proportional balance on the 40mm case and pairs with materials including vegetable-tanned alligator leather and NATO straps.

Frequently asked questions

What is the lug width of the Oris Big Crown 01 754 7679 4381-07 8 20 32?

The lug width is 20mm. This measurement is specific to this Oris reference and is measured by placing a caliper between the two lugs of the case at the strap attachment point. It is a rare dimension in the watchmaking landscape, requiring bespoke straps.

Which strap is recommended for the Oris Big Crown 01 754 7679 4381-07 8 20 32?

It depends on intended use and aesthetic preference. For formal elegance: alligator with vegetable tanning or shell cordovan. For avionic heritage: cotton NATO. For marine environments: FKM rubber. Milano Straps offers all these solutions in 20mm, customisable in colours that enhance the case's stainless steel.

How do I change the strap on the Oris Big Crown 01 754 7679 4381-07 8 20 32?

Strap replacement is straightforward. Obtain a spring bar tool, position it perpendicularly to the pin, apply steady pressure to compress the internal spring, then extract the pin from the case. Repeat on the opposite side. Insert the new pins into the strap, align and click into the case: the pin will snap automatically into place. Reversible operation with no damage.

Is a 20mm aftermarket strap compatible with the Oris Big Crown 01 754 7679 4381-07 8 20 32?

Yes, any strap with 20mm lug width is compatible with this reference. Milano Straps supplies artisanal straps in 20mm that respect the proportions of the 40mm case and maintain aesthetic coherence with the Big Crown's avionic design.

What is the average lifespan of a leather strap on an Oris Big Crown?

An alligator or calf strap with vegetable tanning, if subjected to regular maintenance (light damp cleaning, natural drying), lasts 3–5 years with daily wear. Shell cordovan, due to tannin density, easily reaches 5–7 years. FKM rubber, being waterproof and synthetic, comfortably exceeds 10 years. Milano Straps provides detailed care instructions.

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