Patek Philippe Grand Complications Celestial Sunrise and Sunset 47mm 18K White Gold Sky Chart Dial (Ref# 6105G-001)

White gold case measuring 47mm in diameter and 12.39mm thick, with contrasted polished and sandblasted finishes and a pattern on the case flanks and on the solid caseback inspired by the design of space modules. Sapphire crystal over a sapphire-crystal dial showing the exact configuration of the sky in the northern hemisphere, where an ellipse frames the portion of the sky visible from Geneva and all other cities located at the same latitude, together with the apparent movement of the stars and the phases and orbit of the Moon. Skeletonized hour and minute hands in white gold with white varnish, sunrise and sunset time indications by hands, and the date displayed on a disk at the periphery of the dial and indicated by a red varnished hand. Self-winding Caliber 240 C LU CL LCSO measuring 38mm in diameter and 7.93mm thick, comprising 426 parts and 51 jewels, with a Gyromax® balance, a Spiromax® balance spring, a 22K gold off-center minirotor, and correctors for adjusting summer and winter time covered by six pending patent applications. Frequency of 21,600 semi-oscillations per hour (3 Hz). Power reserve of minimum 38 hours and maximum 48 hours. Integrated black composite strap with X-shaped pattern and patented fold-over clasp in white gold. Water-resistant to 30 metres / 100 feet. Certified by the Patek Philippe Seal.