Buy, Sell, or Trade your watch here: http://www.thewatchbox.com Tim Mosso and Mike Michaels discuss automatic wristwatches that use micro-rotor automatic calibers. Tim discusses the history of micro-rotor movements, and Mike takes viewers on a guided tour of the Patek Philippe caliber 240 Q in a Patek Philippe 5940 perpetual calendar in yellow gold. Tim and Mike discuss the advantages of micro-rotor automatic watches. The role of the Buren Watch micro-rotor caliber 1280 in the development of the modular automatic Heuer chronograph "Caliber 11" is discussed with an exploded movement illustration. Finally, Tim cites the modern micro-rotor movements used by Roger Dubuis, Patek Philippe, Panerai, Chopard, Laurent Ferrier. Video and content by Tim Mosso and Pheline Jerome.