HONG KONG, China (Reuters) — The most complicated Patek Philippe watch has been previewed at Sotheby’s in Hong Kong ahead of its auction in Geneva. With 33 complications, the Calibre 89 is a leader in innovation and importance. After research began in 1980, Patek Philippe unveiled the Calibre 89 in 1989 to mark their 150th anniversary. The horological masterwork is one of the most important watches ever to be offered at auction according to Sotheby’s, […]