Spanish buyers attention:Si votre adresse comprend le code postal suivant, veuillez ne pas choisir leSpaNish entrepôt.The zip code starts with 51 /52/ 07 /35 /38.L'entrepôt à l'étranger ne peut pas être livré.Otherwise we will send the order from China warehouse.Otherwise we will send the order from China warehouse.International Retro Portable Competition Game Timer Mechanical Count Up Down Analog Chess Clock GiftDescription:Mechanical structure: the mechanical structure with timing start button is adopted to make timing operation intuitive, convenient and accurate.Chess game: No need batteries. It's driven by spring. It's easy to use. It's similar to the working mode of quartz clock. It is a timing tool used in most chess games in Europe and America.High precision: the daily error is less than 1 second, which is suitable for timing clock in various chess matches.Wood: made of wood and plastic, it is strong and durable and not easy to break. Wood color design, exquisite workmanship.Special maintenance: the chess clock should be kept away from corrosive substances and exposed to sunlight, rain, water drops and strong magnetic field.Specification:Material: plastic shell, copper zinc alloy movementProduct size: 15x5.5x9cm/5.9*2.16*3.55inBox: 19x7.5x12cm/7.48*2.95*4.72inNet weight: 290gPacking weight: 360gSuitable for chess, Chinese chess, go and other gamesColor: Log colorInstructions:1.The match clock adopts the mechanical structure with timing start button. The timing operation is intuitive, convenient, accurate, and the daily error is less than 1 second. It is suitable for timing clocks of various chess games.Use:Press the left button, the left clock stops timing, and the right clock starts timing. On the contrary, press the right button to stop timing on the right side, and start timing on the left side. Press the buttons on both sides for half a way at the same time (that is, the buttons on both sides are in the same horizontal position), and the two clocks are in the stop timing state.Second hand zero adjustmentBy alternately operating the buttons on both sides, the two clock seconds can be adjusted to the 12 o'clock position (zero position) in turn, and the hour hand is turned to the 12 o'clock position according to the arrow direction of the pinhole on the back of the clock. In the match clock, the minute hand zero position discrimination uses the minute hand to push the whole point determination mark ""small red flag"" to the right to reach the 12 o'clock position, and the scale of the minute hand alignment at the moment of the ""small red flag"" falling freely is the zero position.Maintenance:Chess clock should be prevented from contact with corrosive materials, avoid exposure to the sun, rain, drop and close to strong magnetic fieldNote:Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!Please allow 1-3cm measuring deviation due to manual...