An authentic Longines Master Collection men's automatic watch model L2.909.4.78.6, also known as L29094786. Key features include a 40mm stainless steel case, a silver dial with blue hands and Arabic numeral hour markers including minute markers around the outer rim, plus a Moon phase sub-dial displaying lunar phases. The band is crafted from stainless steel material for durability. It boasts an automatic self-winding movement powered by quartz technology ensuring precision timekeeping. Essential functions are Hour, Minute, Second, and Moon phase display capabilities. Comes equipped with scratch-resistant sapphire crystal glass providing excellent clarity and resistance to damage. The round case features a fixed bezel design enhancing its functionality as a dive watch or chronograph accessory. This model is water resistant up to 30 meters (100 feet), suitable for splashes but not prolonged immersion. An authentic Longines piece with a transparent case back allowing visibility of the movement and comes with a comprehensive WatchMaxx warranty covering potential defects for two years.