A mechanical watch is a device for keeping time, which uses the energy from a wound spring, and keeps time through the highly regulated release of that energy through a set of gears (the wheel train) and an escapement. It differs from the typical quartz watch in that it uses purely mechanical components to keep time. Mechanical watches typically can run for about 40 hours on one full winding of the mainspring, with a few designs available with up to 8 days, or even 10 days, of power reserve. We can service your Omega Rolex  Tag  Seiko  Sinn  Citizen  Oris  Orient  Audemars Piguet  Breitling Cartier  Chopard  Chronoswiss  IWC Officine Panerai Tudor  Zenith  Tissot Hamilton Doxa Aquastar Benrus and more models ( vintage or new) using original parts