PTS Resources are a Hong Kong based supplier of watch movements, established in 1991. Although PTS do offer movements of their own design; most notably their famous tourbillons ; the actual manufacturing is done for them by the Hangzhou Watch Company , Qingdao Zixin Industrial Company , Shanghai Golden Time Precision Instrument Company and Shandong Liaocheng Zhong Tai Watch Company . In addition to such exclusive movements, PTS also offer off-the-shelf models from these factories. They also deal in off-the-shelf calibres from Nanning Watch Factory , Shanghai Watch Industry Corporation , Guangzhou Five Goat Watch Company and Tsinlien Horologia , Hong Kong. (Tsinlien source all their movements from Tianjin Seagull ).
PTS also offer Swiss mechanical movements and quartz movements from many international manufacturers.
- Website http://www.ptsresources.com/ includes a comprehensive movement catalogue