Strap for Big Crown Original Pointer Date 40 Stainless Steel / Black / Bracelet

The lug width (ansa misura in Italian technical terminology) of this model is precisely 20mm. This dimension is critical when selecting aftermarket straps, as it represents the interior distance between the two lugs of the watch case. Accurate measurement is essential to ensure the strap fits without lateral play or protrusion.

The 40mm Big Crown pairs ideally with four strap categories: genuine alligator for sporting elegance, vegetable-tanned calf leather for developing patina over time, cotton-nylon NATO straps to emphasise its aviation heritage, and FKM rubber for technical versatility. The choice depends on primary use and personal aesthetic preference.

Strap replacement is accomplished via the watch lugs, which may feature fixed attachments or spring bars. For spring bars, a small lever or dedicated tool is required to compress the spring and extract it. For pin attachments, a spring bar tool is necessary to gently remove the pin without applying excessive force to the case. Work on a clean, well-lit surface.

Yes, any strap manufactured to 20mm lug width specifications is compatible with this model, provided it is crafted to precision standards and the pin holes align with conventional tolerances. We recommend straps from specialised manufacturers who verify dimensional accuracy for a flawless fit.

A high-quality leather strap—whether alligator or vegetable-tanned calf—maintains structural integrity between 18 and 36 months with daily wear, depending on frequency of water and humidity exposure. Patina development and micro-scratches are natural signs of aesthetic ageing, not functional degradation. An FKM rubber strap typically resists elasticity loss for 24–48 months.