Watches and clocks are the product of human progress in science and technology. Without sophisticated equipment and first-rate talent, it is impossible to create a viable watch. Early major watch factory, not devoted large sums of money to develop accurate and durable dedicated watch movements, so the major watch factory movements have their own unique design style, as the son of Shaw because of kinship. Buy antique watch view highlights are as follows: 1 check whether the original production of this movement? 2 its board road style right? 3 observe the movement of serious oxidation rust, scratches? 4 small screws on the board is missing? 5 turn two or three laps, watch the table in the positive, anti, left, right, up, down and other different directions, will go? 6 Check the roundness and level of the balance is normal? 7 balance wheel swing back and forth, is ideal? 8 tighten the winding process is smooth? 9 The size of the sound emitted by the forwarding bar, with its design, with the merits of the movement, there is no absolute relationship. 10 pull out the head, turn the hour hand, and then check the position of the minute hand is correct? 11 If a calendar is attached, depending on whether the calendar will jump forward normally, check the standard time. 12 Swiss, British, French-made precious metal cases, most of which are imprinted with precious metal branding; the American watch will be branded with the words 14K or 18K gold. These tiny marks, about 1 mm², are one of the easiest ways to identify true and false watches, but they must be viewed with a magnifying glass that is ten times bigger. 13 Case and lugs, whether by the collision and bending? 14 head is original? 15 face plate brand is authentic? 16 face plate oxidized and injured to what extent? 17 face plate when the minute, second hand and hour scale whether the original match? 18 bottom cover, movement, face plate signature is the same? 19 movement and the case is close? 20 cover the bottom cover, shake the watch around, whether there is abnormal sound? 21 different automatic table, automatic disk operation in different ways, and have different voices, not bad. 22 if it is multi-function table, turn the clock for 24 hours to see the date, week, moon phase will be normal forward jump? 23 General Test Quick calibration button, usually turn the needle to 6 o'clock midnight, and then press the calibration button to check the date, week, moon phase, month can be adjusted? 24 If it is a perpetual calendar, you have to test the big, small month, leap month, leap year is correct? 25 Chronograph, need to operate the stopwatch start, stop, return to zero function is normal? 26 minute hands of two small hands, hour hand will go? 27 If you have advanced electronic measuring machine, you can immediately measure the second day of the watch and the error of different directions is reasonable? Gossamer, balance wheel back to the isometric, isochronous, commonly known as large and small swing error, is normal? Xiaobian recommended Seven world price watches can not afford to buy works of art? Buy watches should pay attention to four o'clock Million watch world teach you how to buy hedge watch Second-hand watch is worth buying and its precautions Buy watches from the following four o'clock Five Elements Must Understand When Purchasing Swiss Wristwatches Smartly buy the wrist luxury you need Europe to buy Cartier watch Raiders share