Strap for Big Crown Telemeter Chronograph Stainless Steel / Black

The lug width of this model is 21mm, which is the distance between the two lugs on the case where the strap attaches. The 21mm size is specific to the Big Crown collection and is not interchangeable with straps sized differently. To verify compatibility, ensure the strap inserts into the lugs without forcing and without leaving visible gaps.

The choice of strap depends on usage and context. For formal settings, we recommend an alligator or calf leather strap with vegetable tanning, which enhances the elegance of the stainless steel case. For robust daily use, an FKM rubber or NATO textile strap offers durability and extended comfort. Shell cordovan represents a middle ground: premium leather, naturally water-resistant, with a patina that ages beautifully. Browse our collection of 21mm straps to find the option that best suits your style.

To change the strap, locate the pin that runs through the case lugs (usually protruding on one side). Use a blunt-pointed tool or dedicated strap removal tool to extract the pin from the lugs. Once removed, the strap comes off easily. To install the new strap, align the lateral holes of the new strap with the lug holes and reinsert the pin. Ensure the pin is fully secured and the strap does not rotate. If uncertain, consult a professional watchmaker.

Yes, absolutely. The Oris Big Crown 01 674 7569 4064-07 5 21 56 is compatible with any quality aftermarket strap constructed with a 21mm lug width. Milanostraps.it offers a curated collection of artisanal 21mm straps in leather, textile, and rubber, all tested for mechanical compatibility with this model. A quality aftermarket strap not only preserves your watch's value but also allows you to experiment with aesthetic variations and adapt the timepiece to different usage contexts.

The lifespan of a leather strap depends on usage, climatic conditions, and leather quality. A well-crafted calf or alligator strap, used daily, typically lasts 3-5 years before requiring replacement due to seam failure or excessive thinning. Vegetable-tanned leather, being more natural, develops a patina that improves over time but reduces water resistance. Prolonged exposure to humidity, direct UV rays, or heat sources accelerates wear. Proper maintenance—regular cleaning and drying—significantly extends lifespan. Shell cordovan, thanks to its natural density, offers superior durability even in demanding conditions.