Strap for Chrono-Matic 49 Bronze

The Breitling Chrono-Matic A1436002.Q556 features a 24-millimetre lug width. This dimension is critical for achieving visual balance between the 49mm case diameter and the overall proportions of the watch. Straps with lug widths above or below 24mm will not fit correctly into the case lugs.

The optimal choice depends on your intended use and personal aesthetic. For a formal, classical approach, we recommend alligator in black or shell cordovan in aged tobacco brown, both 24mm. For a more instrumental, aviation-focused execution, a dark blue canvas NATO or technical rubber strap maintains emphasis on functionality. Casati Milano atelier personalises each solution based on wrist measurements and individual colour preferences.

The strap is changed by unscrewing the spring bars—small spring-loaded pins—that connect the strap to the case lugs. These are located at either end of the lug width, accessible via a small tool typically supplied with Breitling watches or available for separate purchase. Release the spring mechanism gently, withdraw the old strap, and insert the new one, ensuring the spring bars lock fully into the case lugs. This operation requires only a few minutes and no specialist technical knowledge.

Yes, provided the lug width is precisely 24 millimetres. Milano Straps supplies artisanal leather and textile straps dimensioned specifically for this model, with full customisation options including precise sizing, contrast stitching, and embroidered initials. The Casati Milano atelier also creates bespoke solutions by appointment with personalised consultation and an 18-month warranty.

Longevity depends on material choice, frequency of use, and maintenance practices. An artisanal alligator or shell cordovan strap typically lasts 5-8 years with daily wear, developing a distinguished patina throughout its life. Vegetable-tanned leather accelerates this ageing process, generating increasingly complex character. Occasional cleaning with specialist products and exposure to natural light maintain optimal leather condition. Canvas NATO straps demonstrate extended longevity (10+ years) owing to the absence of perishable organic fibres.