Discover Breitling's precision with the Avenger (ref. XB1210E4/BE89/257S/X20D.4), a contemporary classic shaped by careful watchmaking know-how. The exterior is thoughtfully executed: crafted in titaplast and measuring 50 mm in diameter, with a thickness of 17.75 mm, defined by a round silhouette, paired with a rotating, 0-60 (dive) bezel. The caseback is closed, and the crystal is sapphire, delivering water resistance to 30000 meters. At a glance, the dial balances texture and clarity: a black tone, framed by arabic numerals hour markers, and stick hands. At its heart beats a proven engine: the Caliber B12 caliber. Initial production year: 2016. With considered ergonomics, it feels composed during extended wear. Brushed and polished elements play with light to emphasize crisp geometry. For buyers researching specifications and real-world impressions, this reference stands out for coherent design, dependable mechanics, and lasting relevance within modern horology.