Oris · Big Crown

Strap for Big Crown Pointer Date Cervo Volante / Grey

Takes 19 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width19 mm
Case diameter38 mm
Reference01 754 7779 4063-Set
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

The Big Crown 01 754 7779 4063-Set, seen from the bench

The Oris Big Crown 01 754 7779 4063-Set is a 38mm stainless steel timepiece rooted in 1940s aviator heritage, featuring an elevated crown and legible dial for cockpit reading. The automatic Oris caliber 754 movement includes date and seconds functions, with a 38-hour power reserve and 28,800 vibrations per hour. The 316L steel case resists marine corrosion, paired with anti-reflective sapphire crystal. The 19mm lug width requires precise strap compatibility, as standard industrial straps do not cover this measurement uniformly.

Frequently asked questions

What is the lug width of the Oris Big Crown 01 754 7779 4063-Set?

The lug width is precisely 19.00mm, measured between the two horizontal pins securing the strap to the case. This dimension is specific to this reference and demands bespoke strap solutions, as 19mm does not represent an industrial standard shared with other models.

Which strap would you recommend for the Oris Big Crown 01 754 7779 4063-Set?

The optimal choice depends on intended use. A vegetable-tanned calf or alligator leather in dark brown emphasises the aviator heritage; midnight-blue calf combines formal elegance with daily versatility; a grey or navy NATO offers practicality and contemporary aesthetic. For aquatic activities, butadiene rubber ensures rapid drainage.

How do I change the strap on the Oris Big Crown 01 754 7779 4063-Set?

Use a spring bar removal tool (flat-tipped lever). Insert the lever into the access hole on the case back, near the spring pin: apply gentle pressure to release the spring, then extract the pin. Repeat on the opposite side. Install the new strap by reversing the procedure, ensuring both pins are fully seated.

Is the Oris Big Crown 01 754 7779 4063-Set compatible with third-party 19mm straps?

Yes, it is compatible with any artisanal 19mm strap, provided precision manufacturing is observed. The 19mm dimension is an exact constructive specification ensuring correct mechanical coupling. Avoid approximate tolerances: an 18.5mm or 19.5mm strap will create excessive play or insertion difficulty.

What is the typical lifespan of a leather strap on the Oris Big Crown 01 754 7779 4063-Set?

A high-quality natural leather strap (alligator, calf, shell cordovan) lasts 3–5 years in daily use, developing patina and character over time. Longevity depends on exposure to humidity, perspiration, and sunlight. A NATO nylon strap resists 5–7 years; rubber 4–6 years. Regular maintenance (gentle cleaning, conditioning) extends lifespan considerably.

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