Credor GCBK987 “Pacific Chronograph”Model: Credor GCBK987 Pacific Chronograph Year: December 2003 Features: The Origin. In 2009, Tag Heuer proudly unveiled the Calibre 1887, its first fully in house movement. The watch world took note. This was a huge moment not just for TAG but for all watchmakers. If a 6 9 12 automatic chronograph could be built fully in house, in under three years, by a company that had never made its own movements before, surely there was hope for everyone? The