PURPOSE:To dispense with the manual setting of a date by adding an automatic count-up function through a built-in timer to the dating part of a dated seal. CONSTITUTION:The timer part 2 set to a timer correction part 1 outputs a data and a time and the date is displayed on a 7-segment display part 7 by the control of a timer output part 3 inputting the signal of the timer part 2. The outputted 7-segment timer display is stamped together with a carved name by a cinnaliar seal ink.
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