The Longines Master Collection L2.128.4.57.6 is a women's automatic watch featuring a 25.5 mm stainless steel case and bracelet. It has a black dial adorned with diamond hour markers and a date display at the 3 o'clock position. The watch is powered by the Longines caliber L595/592 movement, offering a power reserve of approximately 40 hours. The case is protected by a scratch-resistant sapphire crystal and has a transparent case back. Water resistance is rated at 30 meters. Reference number: L2.128.4.57.6.