Longines Flagship Heritage Moonphase Automatic Watch

The watch features a 38.50 mm stainless steel case. Its scratch-resistant sapphire crystal glass has multiple layers of anti-reflective coating on both sides. The blue dial is really eye - catching. It's powered by the L899 automatic movement. This self - winding mechanical movement beats at 25,200 vibrations per hour and has a monocrystalline silicon balance - spring with a power reserve of up to 72 hours. It can show hours, minutes, seconds, moon phase, and the date with a small hand at 6 o'clock. Style#: L48154922

Using this Longines watch is easy. Just put it on your wrist and it will start working automatically once it's wound up by your daily movements. To set the time, date, and moon phase, you can use the crown on the side of the case. When setting the date, make sure not to do it between 9 PM and 3 AM to avoid damaging the movement. For maintenance, keep it away from magnetic fields as they can affect the accuracy of the movement. Wipe the watch regularly with a soft, dry cloth to keep it clean. If you need to open the case for any reason, it's best to take it to a professional watchmaker.