Strap for Avenger B01 Chronograph 45 Stainless Steel / Red Gold / Anthracite / Strap - Pin

The Breitling Avenger UB01821A1B1X1 features a lug width of 22mm. This measurement is specific to the 45mm case of the Avenger and determines compatibility with all aftermarket straps. Before purchasing a replacement strap, it is advisable to verify the measurement using a digital calliper placed between the lugs, flush against the case.

For the UB01821A1B1X1 reference, the steel and red gold combination pairs exceptionally well with a glossy alligator strap in bordeaux or cognac, which enhances the warm tones of the case. Alternatively, a vegetable-tanned Tuscan calfskin in havana brown develops a distinctive patina over time. For sporting or humid environments, a vulcanised rubber strap with a steel deployant clasp is the most practical choice.

The strap on the Avenger is removed using a fine-tipped spring bar tool, inserted into the lateral hole of the lug to compress the spring bar inward. It is advisable to work on a soft surface to avoid scratching the case. The procedure does not require specialist tools, but a degree of dexterity is needed to avoid damaging the red gold lug finish. If in doubt, it is preferable to consult a watchmaker or an atelier such as Casati Milano.

Yes, all straps with a 22mm attachment width are compatible with the Avenger UB01821A1B1X1, provided the spring bars have the correct diameter (typically 1.5mm). Milano Straps offers a selection of handcrafted straps in alligator, calfskin, shell cordovan and rubber, specifically proportioned for this model, with stitching and finishing suited to the 45mm case.

The lifespan of a leather strap depends primarily on the type of hide, frequency of use, and exposure to perspiration and moisture. A quality alligator strap, with daily wear and regular conditioning (leather cream every 3 to 4 months), can last between 3 and 5 years while maintaining structural integrity and a well-kept appearance. Vegetable-tanned calfskin offers a similar lifespan but develops a more pronounced patina. For humid or sporting environments, rubber straps are considerably more durable.