Strap for Big Crown ProPilot Calibre 111 Stainless Steel / Blue / Textile

The lug width is precisely 22mm, as indicated in the reference designation itself. This measurement is taken centre-to-centre of the lugs horizontally. Accuracy is crucial for aftermarket strap compatibility, as deviations of even 0.3mm will result in mounting difficulties or risk of strap displacement.

Selection depends on intended use: to preserve the avionic aesthetic, we recommend Tuscan leather with vegetable tanning in antique tobacco hue. For daily sport wear, pressure-tanned alligator delivers sophisticated texture with personalised patina development. For versatility, a balisic NATO in navy blue with grey stripes maintains pilot heritage without visual bulk on the 44mm case.

Remove the existing strap: position the spring bar removal tool horizontally beneath the lug with care to avoid case scratches. Extract the spring bar from one side, then the other. Clean the seat of any residue. Align the new strap holes with the lugs, insert the spring bars until audible click-lock engagement. Verify the strap is perfectly centred.

Yes, absolutely. The critical requirement is certified 22mm lug width compatibility. Milanostraps provides straps in leather, alligator, shell cordovan, NATO and rubber, all verified for this specification. Compatibility is guaranteed by exact lug width correspondence: forcing 20mm or 24mm straps is never advisable.

A Tuscan vegetable-tanned leather strap has an average service life of 3-5 years with daily wear, varying according to climate and frequency of use. Vegetable tanning ages magnificently, developing rich patina, but requires maintenance: avoid prolonged water immersion, apply protective balm every 6-12 months. With proper care, the strap can exceed 5 years whilst maintaining both aesthetics and functionality.