| 摘要 |
PROBLEM TO BE SOLVED: To directly confirm visibly a state of a spiral spring to eliminate a trouble inexpensively. SOLUTION: This power reserver display 1 of a mechanical time piece 2 is provided with a barrel 30 and a dial 10, and has a barrel window 37 formed in a wall part 35 in a dial side of the barrel 30 to confirm visibly the state of the spiral spring located in an inner side of a barrel main body 31 of the barrel 30, form an outside, and a dial window 11 formed in the dial 10 to be faced to one part of the barrel window 37. The mechanical time piece 2 is provided with a main plate 20 for supporting rotatably the barrel 30 between the barrel 30 and the dial 10, and has further a main plate window 25 formed in a portion faced to the dial window 11 out of the main plate 20. COPYRIGHT: (C)2007,JPO&INPIT
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