Introducing Hamilton Khaki Aviation (ref. H77916920), a contemporary classic shaped by careful watchmaking know-how. The exterior is thoughtfully executed: crafted in stainless steel and measuring 45 mm in diameter, defined by a round silhouette, paired with a sliderule bezel, protected by pvd gold coating. The caseback is open, and the crystal is sapphire, delivering water resistance to 10000 meters. At a glance, the dial balances texture and clarity: a green tone with matte finish, framed by stick / dot hour markers, and syringe hands. Among collectors, it is nicknamed "Camouflage". At its heart beats a proven engine: the H-21 Si caliber. Initial production year: 2021. 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.