Oris · Big Crown

Strap for Big Crown Diamonds 38 Stainless Steel - Diamond / MOP

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 733 7649 4966-07 5 19 62
FamilyBig Crown
MovementOris caliber Oris 733 ND Hours, Minutes, Seconds
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 01 733 7649 4966-07 5 19 62, seen from the bench

The Oris Big Crown 01 733 7649 4966-07 5 19 62 is a modern Swiss instrument watch with a 38mm stainless steel case featuring applied Arabic numerals, unidirectional rotating bezel with 120 clicks, and a domed sapphire crystal. Powered by the Oris 733 ND automatic movement (Sellita SW200-1 based) with 38-hour power reserve, it displays hours, minutes, and seconds on a transparent caseback. The 19mm lug width ensures precise ergonomic fit on the wrist without excessive side protrusion.

Frequently asked questions

What is the lug width of the Oris Big Crown 01 733 7649 4966-07 5 19 62?

The lug width is 19 millimetres. This measurement is recorded by positioning a digital calliper between the horizontal attachment pins and measuring the internal distance from centre to centre. It is essential to verify this dimension before purchasing an aftermarket strap to ensure perfect compatibility.

Which strap is recommended for the Oris Big Crown 01 733 7649 4966-07 5 19 62?

Straps crafted from American alligator or vegetable-tanned calf leather are the optimal choices to preserve the technical elegance of the Big Crown. Alligator imparts formal gravitas and develops a noble patina over time. For sporting contexts, NATO fabric or robust rubber straps offer superior functionality without visual compromise.

How do I change the strap on my Oris Big Crown 01 733 7649 4966-07 5 19 62?

Strap replacement is accomplished by removing the lateral attachment pins using a dedicated spring bar tool. Position the watch with the case facing upward, locate the small lateral apertures adjacent to the pins, gently insert the spring bar tool to compress the internal spring and slide the pin from its seat. Repeat on the opposite side, insert the new strap pins and verify that they are securely fastened.

Are 19mm aftermarket straps truly compatible with the Oris Big Crown 01 733 7649 4966-07 5 19 62?

Yes, any strap manufactured to the international 19mm lug width standard will be compatible. However, it is advisable to verify that the strap thickness does not exceed 5–6 millimetres to ensure optimal ergonomic fit. milanostraps.it artisanal straps are produced specifically to this tolerance.

How long does a leather strap last on an Oris Big Crown 01 733 7649 4966-07 5 19 62?

Durability depends on the material and intensity of use. A vegetable-tanned calf strap typically lasts 4–6 years of daily wear, during which it develops characteristic patina. American alligator straps, owing to greater fibre density, can endure 6–8 years. Exposure to moisture, perspiration and sunlight accelerates ageing; regular maintenance with dedicated balms significantly prolongs lifespan.

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