The Longines Spirit Zulu Time L3.812.5.53.6 is a 42 mm automatic watch featuring a stainless steel case with 18K yellow gold accents and an anthracite dial. It is powered by the COSC-certified Caliber L844.4, offering a 72-hour power reserve. The watch includes a bi-directional rotating ceramic bezel, a date display at 6 o'clock, and a GMT function. It is water-resistant up to 100 meters and comes with a stainless steel bracelet equipped with a double safety folding clasp. Reference number: L3.812.5.53.6.