The Blancpain Villeret ref: 6654-1504-55B features a platinum case with a diameter of 40mm. This timepiece is powered by an automatic winding movement and includes functions for date, week, month, and moonphase. The model number is 6654, and it is designed to offer a comprehensive display of time and lunar cycles. The watch combines traditional design elements with modern functionality, making it a notable addition to any collection.