| 摘要 |
PROBLEM TO BE SOLVED: To provide a testifying clock of image recording time capable of obtaining high testimony power concerning the imaging time of the image by easily taking an image capable of testifying the imaging time at any location and by making it difficult to change the time display. SOLUTION: The testifying clock of image recording time is provided with a time display 7 indicating year, month and time, and an outer frame 2 having inside the time display 7. Inside the outer frame 2, a space sealed from the outside and depressurized or pressurized compared with the outside is formed. A pressure difference switch 4 for detecting the pressure variation in the space and terminating the time display 7 is contained in the outer frame 2.
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