This Double Flywheel Hollow Watch Automatic Mechanical Watch Calendar Men’S Watch from the Opaline Luxury collection is a must-have for the modern man. Its classic design features a hollow face with a double flywheel, perfect for those looking for a classic yet modern look. The watch comes in twelve different colors, ranging from black and silver to blue, green, and red. The automatic mechanical movement ensures precision and accuracy, while the calendar feature provides the wearer with a convenient way to keep track of time. Whether it’s for a special occasion or everyday wear, this watch is sure to make a statement.