The night sky of the northern hemisphere rotates counterclockwise on this timepiece's magnificent blue dial, showing the angular progression of the stars relative to the meridian passage of Sirius. At the same time, the display shows the meridian passage and phases of the moon. Two hands from the center show the hours and minutes of mean solar time on a dial with Roman numerals. This Patek Philippe features a polished platinum case and a fixed bezel made of the same metal. It fastens using black crocodile leather strap with a firm tang buckle. Lastly, the piece resists water to a depth of 25 meters and has a transparent case back.
