Meet Jaeger-LeCoultre Master Extreme (ref. 1752440), a distinctive model that balances proportion, precision, and presence. On the wrist, the case feels purposeful: crafted in pink gold and measuring 41.5 mm in diameter, 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 10000 meters. Visually, the face is where character emerges: a grey tone with sunburst finish, framed by stick / dot hour markers, and baton hands. Mechanically, the watch prioritizes accuracy: the 751 caliber. Initial production year: 2015. 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.