Strap for Super AVI B04 Chronograph GMT 46 Mosquito / Bracelet

The lug width of the Breitling AVI YB04451A1B1A1 is 24mm. This measurement is specific to the AVI model of this generation and is proportioned to the 46mm case. To verify correctly, place a digital calliper between the two strap attachment points on the case, perpendicular to the movement, obtaining a precise and reliable measurement.

For the Breitling AVI YB04451A1B1A1, we recommend straps in alligator or calf leather with vegetable tanning for refined aesthetic pairing, or FKM rubber for operational and resistant use. Alligator delivers maximum elegance with an almost invisible microgranular texture, calf develops a natural patina that tells the story of time, rubber guarantees durability in extreme environments without fearing moisture and perspiration.

Changing the strap on the Breitling AVI YB04451A1B1A1 is performed through the lateral fixing pins. Use a dedicated watch tool (spring bar tool) to exert controlled pressure on the pin's internal spring, extracting it gently. Repeat the operation symmetrically, then insert the new strap by aligning the holes to the ansa ends and snap the pins into position. Avoid abrupt movements to prevent scratching the case.

Yes, any strap manufactured with a 24mm lug width is compatible with the Breitling AVI YB04451A1B1A1. High-quality aftermarket straps, such as those in alligator, calf or FKM rubber available on Milano Straps, offer the same mounting precision as the original strap, maintaining the aesthetic and functional integrity of the watch. Ensure the chosen strap features quality pins to guarantee stability and longevity.

The lifespan of a leather strap depends on tanning method and usage. An alligator or vegetable-tanned calf strap can last from 3 to 7 years with daily wear, developing a patina that increases aesthetic character. Factors such as moisture, perspiration and sun exposure accelerate deterioration. To extend the strap's life, we recommend rotating multiple straps and keeping them dry. The 18-month warranty on Casati Milano straps ensures initial protection.