Strap for ALT1-Z Zulu Green Bracelet

The Bremont ALT1ZDGbr features a lug width of 22mm. This measurement refers to the distance between the two attachment points on the case (the lugs). To verify compatibility with an aftermarket strap, measure with a digital calliper the distance between the attachment protrusions: it must be exactly 22mm. Any strap with this lug width is therefore mechanically compatible with this model.

For the Bremont ALT1ZDGbr, straps in Tuscan vegetable-tanned leather in cognac brown or Dark Brown tones are ideal, as they create visual continuity with the avionic dial and develop natural patina over time. Alternative options include NATO straps in Cordura nylon (a historic material used in RAF flight suits) for practicality and weather resistance, or alligator straps with stainless steel deployante buckles for a more sophisticated aesthetic upgrade. Your choice depends on intended use: avionics-formal, technical-sporty, or elegant-versatile.

To change the strap on a Bremont ALT1ZDGbr: 1) use a dedicated spring bar tool; 2) insert the flat end of the tool into the groove beneath the upper lug to release the internal spring; 3) carefully extract the metal axis (spring bar); 4) repeat for the lower lug; 5) align the new strap with the attachment protrusions; 6) reinsert the axes until they click securely into place. Never force the movement—it must be fluid. If unfamiliar with the process, consult a certified watchmaker.

Yes, numerous watchmaking manufacturers offer 22mm-width straps. Milano Straps offers a specialised collection of 22mm straps in multiple materials: Tuscan vegetable-tanned leather, chromium-tanned leather, alligator, calf, NATO textiles, and FKM rubber. All straps in the 22mm section are verified for mechanical and aesthetic compatibility with the Bremont ALT1ZDGbr. Custom straps (colour, stitching, buckle finishes) are also available upon request directly from the Milano Straps atelier.

The lifespan of a leather strap depends on frequency of use, climatic conditions, and the quality of tanning. A Tuscan vegetable-tanned strap with daily wear has an average lifespan of 3–5 years before replacement becomes necessary; however, many collectors prefer to retain the same strap for 7–10 years, appreciating the patina development and aged texture. Constant exposure to moisture, salt sweat, or heat accelerates wear. A chromium-tanned calf or alligator strap tends to last longer due to denser fibre structure. Regular maintenance (cleaning, conditioning with specific creams, drying after wetting) significantly extends the useful life of any leather strap.