Chronoswiss Watch Sirius Chronograph Moon Phase CH-7543L. An elegant chronograph with colourful moonphase complication, the Chronoswiss Sirius Chronograph Moonphase watch calls out to our fascinations with the night sky and its associations with storytelling, magic and poetry. At 3 o’clock, the moonphase aperture is set against a stunning hand guilloche backdrop of 925 sterling silver contrasting delightfully with a dark blue sky, golden stars and a smiling moon. The moonphase aperture pairs with three other matching subsidiary dials for chronograph timekeeping, each detailed with thermally blued hands. At the centre three hands for hours, minutes and central chronograph seconds are also blued and shaped into the classic \"Breguet Losange\" design. Around the circumference of the dial, a fourth hand stands out with a vivid red tip to mark the date.   Powering each of the functions on the Chronoswiss Sirius Chronograph Moon Phase watch is the automatic winding Calibre C.755 movement. As well as boasting a power reserve of 46 hours and a frequency of 28,800 vibrations per hour, the mechanical calibre is equipped with a total of 25 jewels, some of which can be admired through the sapphire crystal exhibition case back. The movement also showcases polished finishing on the pallet lever, escape wheel and screws, bridges and plates with perlage detailing and a skeletonised, rhodium plated oscillating mass adorned with the classically Swiss Côtes de Genève decoration. The movement is protected within a timeless stainless steel case which sits comfortably on the wrist with the help of sleek lugs and a black Louisiana alligator leather strap. The case of the Chronoswiss Moonphase watch measures to 41 millimetres in diameter, 14.8 millimetre in height and features a polished, unadorned screw down bezel with side knurling and full thread.