Strap for Big Crown ProPilot Altimeter Meter / Grey Textile

The lug width of this model is exactly 23 millimetres. This is a non-standard specification in the global watch market, so always verify this dimension before ordering aftermarket straps to ensure structural compatibility without play.

For a substantial 47mm case with 23mm lug width, we recommend vegetable-tanned alligator (thickness 1.4-1.6mm) or calf leather with vegetable tanning in havana tones. Alternatively, a 5-ring NATO in steel-grey or midnight textile creates aesthetic continuity with the watch's avionic heritage.

Position the watch on a soft surface. Use a spring bar tool to compress the metal arches that hold the lugs from underneath. Once the arches are loosened, remove the old strap and insert the new one, ensuring the ends are perfectly aligned with the attachment holes. Reposition the arches carefully.

Yes, quality straps from specialist suppliers with a certified 23mm lug width are fully compatible. Milano Straps offers a selection of handcrafted leather, NATO, and natural rubber straps, ready to ship and available in numerous shades to match your personal style.

A quality alligator or calf leather strap, used daily on a substantial case such as the ProPilot 47mm, maintains structural integrity for approximately 2-3 years on average. Vegetable-tanned leather develops a natural patina over time, improving aesthetically. We recommend rotating with alternative straps (NATO, rubber) to extend longevity.