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

The lug width of this model is 19 millimetres. This is the standard measurement for the Big Crown and is essential for selecting compatible straps. To verify it, measure the distance between the inner edges of the lugs using a ruler positioned perpendicular to the case horns.

Choice depends on use: for professional and aviation environments, a calf leather strap with vegetable tanning offers aesthetic versatility. For intensive use and humid environments, FKM rubber guarantees dimensional stability. A 1.4mm canvas NATO represents the minimalist option. Alligator and shell cordovan are ideal for decade-spanning longevity.

Use a dedicated tool (spring bar tool) to extract the spring that connects the strap to the lugs. Position the tool in the spring's groove, apply gentle outward pressure, then remove. Ensure the lug is clean before fitting the new strap, inserting one end of the spring first, then the other with a fluid motion.

Yes, quality aftermarket straps with 19mm lug width are completely compatible. Brands such as Hirsch, Barton, Eulit and Italian manufacturers offer extensive selections in this dimension. Always verify lug width before purchase: a 0.5mm variation can compromise fit.

A quality vegetable-tanned leather strap lasts an average of 3-5 years with moderate daily use. Durability depends on climate, humidity, frequency of changes and maintenance. Alligator or shell cordovan straps easily exceed a decade. FKM rubber has virtually indefinite stability. Protect leather from prolonged direct sunlight exposure and extreme humidity.