Oris · Big Crown

Strap for Oris Big Crown 01 735 7660 4264

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 735 7660 4264
FamilyBig Crown
MovementOris caliber Oris 735 hours, minutes, 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 01 735 7660 4264

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Big Crown 01 735 7660 4264, seen from the bench

The Oris Big Crown houses the automatic Oris 735 caliber with hours, minutes, seconds, date and day indications. The stainless steel case measures 44mm in diameter with 22mm lugs. The model belongs to the brand's aviation collection.

Frequently asked questions

What is the lug width of the Oris Big Crown 01 735 7660 4264?

The lug width is 22mm. This dimension directly identifies compatible straps and reflects the balanced proportions between the 44mm case and the overall watch footprint. Always verify that the strap ends align perfectly with the case lugs without lateral protrusion or play.

Which strap is recommended for the Oris Big Crown 01 735 7660 4264?

The choice depends on intended use and aesthetic preference. For smart-casual contexts, select vegetable-tanned alligator or Tuscan calf leather. For vintage aviation aesthetics, choose a nylon NATO. In humid or salt-prone environments, FKM rubber is the most practical solution. All four materials complement the Big Crown's hybrid sporting-elegant nature.

How do you change the strap on an Oris Big Crown 01 735 7660 4264?

Locate the metal spring bars on both sides of the case. Using a dedicated spring bar tool, press one terminal gently to release the current strap. Repeat from the opposite side. Insert the new strap by aligning its ends with the case lugs and engage the spring bars until they click firmly into position.

Is an aftermarket strap truly compatible with the 01 735 7660 4264?

Yes, provided the width is exactly 22mm. Verifying compatibility is straightforward: the strap ends must align perfectly with the case lugs without lateral overhang or gaps. Quality artisanal straps are constructed to precise tolerances to prevent fitment issues.

How long does a leather strap last on the Big Crown 01 735 7660 4264?

Durability depends on material type and usage frequency. Vegetable-tanned Tuscan calf typically lasts 3–5 years in daily wear, developing natural patina. Alligator, with its tighter fiber structure, may extend beyond 5 years. Rubber, whilst chemically more durable, tends to lose elasticity after 4–6 years. Proper maintenance—gentle cleaning, thorough drying, occasional conditioning—extends the lifespan of any material.

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