Tourbillon movement, complete structure, visible gears, balance wheels, ruby bearings and other components, the fineness is OK, and the travel time is accurate. Please provide your watch model number and clear photos of the original part before placing your order. Thank you for your cooperation! To US: 7-15 days on the way. To other countries could take around 10-25 days on the way. And bad weather or peak season could make it longer. We might change the package due to import custom reason. However, we will conduct strict packaging to ensure that your items are safe. All we ask is you send it back in the same condition as it was received – new and un-used in an original package and must contain everything that was originally provided, such as packing materials, manuals, protective wraps and instructions. We strive to provide 5-star customer service!