The Audemars Piguet Escapement, based on pictures from this site: http://revo-online.com/forum/showthread.php?t=2073
Bottom plain uses uses Wesvdev's procedural wood texture modified to use bump mapping. Original available here: http://blenderartists.org/forum/showthread.php?246113-A-fine-procedural-wood-material-for-Cycles
A modern watch escapement created by Audemars Piguet. Currently not rigged. Remove wood texture for much faster renders. Made with cycles.