Oris · Big Crown

Strap for Oris Big Crown 01 745 7688 4064

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter44 mm
Reference01 745 7688 4064
FamilyBig Crown
MovementOris caliber Oris 745 Hours, Minutes, Small seconds | Date, Day

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 01 745 7688 4064

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Big Crown 01 745 7688 4064, seen from the bench

The Oris Big Crown features a 44mm stainless steel case with 22mm lugs. It is powered by the Oris 745 automatic caliber, providing hours, minutes, small seconds, date, and day of the week indications. The reference 01 745 7688 4064 maintains the classic oversized crown design of the model.

Frequently asked questions

What is the exact lug width of the Oris Big Crown 01 745 7688 4064?

The lug width of the Oris Big Crown 01 745 7688 4064 is 22mm. This width is standard for the Big Crown line and offers broad compatibility with quality aftermarket straps. To verify, measure the distance between the two lugs using a ruler or digital calliper, ensuring that the spring bars protrude evenly from both sides.

Which strap is most suitable for the Oris Big Crown 01 745 7688 4064?

The ideal strap depends on intended use: alligator in black or dark brown for formal contexts; Italian leather with vegetable tanning for everyday versatility and evolving patina; NATO or vulcanised rubber for sporty functionality. The antique grey dial pairs beautifully with dark cognac brown, ebony black, and forest green. The recommended buckle is brushed steel.

How do you change the strap on the Oris Big Crown 01 745 7688 4064?

Use a dedicated tool—a spring bar removal punch or thin screwdriver—to gently press the spring bar downwards from beneath the lug. Work on both sides with light movements, avoiding excessive pressure that could scratch the steel. Insert the new strap, aligning the holes with the lugs, then fully reinstate the spring bar until it clicks securely.

Is a compatible 22mm aftermarket strap reliable on this model?

Yes, provided the quality is consistent with the instrument's standards. Oris constructs the Big Crown 01 745 7688 4064 to high specifications; therefore, a 22mm strap in artisanal leather with vegetable tanning, certified alligator, or heavyweight NATO fabric maintains aesthetic and functional integrity. Always verify that the lug width is precisely 22mm and that the strap has adequate thickness for secure anchoring.

How long does a leather strap last on a watch like the Oris Big Crown?

Durability depends on material, tanning method, and daily wear. Premium vegetable-tanned leather evolves visibly while maintaining structure and flexibility for 4–6 years of regular use. Alligator, more resilient, lasts 5–7 years. Heavyweight NATO fabric persists for 8–10 years before degradation. Vulcanised rubber typically lasts 3–4 years before hardening. Critical factors are humidity exposure, frequency of use, and maintenance practices.

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