Experience the craft of Patek Philippe in the Grand Complications (ref. 2499J Series 4), a contemporary classic shaped by careful watchmaking know-how. The exterior is thoughtfully executed: crafted in yellow gold and measuring 37.6 mm in diameter, with a thickness of 14 mm, defined by a round silhouette. The caseback is closed, and the crystal is sapphire. At a glance, the dial balances texture and clarity: a silver tone, framed by stick / dot hour markers, and dauphine hands. Among collectors, it is nicknamed "Beyer". At its heart beats a proven engine: the 13''' CCR caliber. First released in 19781985. 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.