Introducing Breitling AVI (ref. AB3521U41B1P1), a distinctive model that balances proportion, precision, and presence. On the wrist, the case feels purposeful: crafted in stainless steel and measuring 43 mm in diameter, with a thickness of 14.35 mm, defined by a round silhouette, paired with a rotating, single mark bezel. The caseback is open, and the crystal is sapphire, delivering water resistance to 10000 meters. Visually, the face is where character emerges: a black tone with sunburst finish, framed by arabic numerals hour markers, and syringe hands. Mechanically, the watch prioritizes accuracy: the Caliber B35 caliber. Initial production year: 2018. The silhouette offers presence without excess, lending confidence in a range of situations. Finishing showcases disciplined attention to detail across facets, edges, and surfaces. For buyers researching specifications and real-world impressions, this reference stands out for coherent design, dependable mechanics, and lasting relevance within modern horology.