If you have any questions, please contact customer service first, do not open disputes easily, thank you! 100% Brand new and high quality. Product material is strong, durable, long service life. Can be used as a spare parts to facilitate the replacement of your movement. Mechanical Watch Movement Direct replacement of 2836-2 chronoscope. Material: Copper + Steel Casing diameter is 26.0mm White day/date at 3H Color: Silver Carved. 1, The movement is a special precision goods, is the need to repair the table technology to operate the people, do not understand the people to find a table repair master, so as not to damage the movement caused by a waste. 2, Due to the manual measurement, there might be some error.