Strap for Big Crown Chronograph Stainless Steel / Black / Bracelet

The lug width is 21.00mm, which is the distance between the two case lugs. This measurement is specific to this reference and represents a generous spacing, rare across the Oris Big Crown catalogue. To verify, measure directly between the lugs using a ruler: 21mm from the inner shoulder of one lug to the other.

The Big Crown accommodates a wide range of materials. Italian calf leather with vegetable tanning develops rich patina and ages beautifully; a NATO strap in nylon remains the classic aviation choice, indestructible and understated; alligator represents the pinnacle of formal elegance; a rubber strap is the practical solution for sports and water use. Your choice depends on intended use and context.

The Big Crown is fitted with a deployante clasp from the factory. To remove the strap, press the small lateral buttons on the clasp to release the pins, then extract the strap from the case lugs. Insert the new strap into the same lugs ensuring the pins engage fully. The deployante clasp can be transferred to the new strap or replaced with a compatible alternative.

Yes, milanostraps.it maintains a complete collection of 21mm compatible straps for the Oris Big Crown 01 674 7567 4064-07 and similar references. The range includes Italian leather with vegetable tanning, alligator, woven NATO and rubber straps. All are ready to ship and customisable according to your colour and material preferences.

A quality leather strap, subjected to moderate daily use, will last between 2 and 5 years before requiring replacement. Longevity depends on exposure to perspiration, humidity and care (avoid direct water immersion). A leather strap with vegetable tanning ages by developing patina rather than degrading, extending the aesthetic life of the piece. Rubber and NATO straps offer superior durability, lasting 7–10 years.