The Longines Hydro Conquest ref: L3.780.4.56.6 features a 39mm stainless steel case with a black ceramic bezel. This model, introduced in 2022, is powered by the Longines caliber L888.5, an automatic winding movement known for its precision. It includes a date function and is certified as a chronometer, ensuring reliable timekeeping. The watch combines durability with a sleek design, making it suitable for both aquatic and everyday wear.