POWER RESERVE MECHANISM AND ITS DISPLAY UNIT

The power reserve means (100) comprises a 1st winding stem train wheel (150) in the charge of the winding stem of a ratchet wheel (2) and a 2nd winding stem train wheel (160) in charge of the winding stem of a complete barrel which are separate from each other. A 1st indicator (51) is present on the 1st winding stem wheel and a 2nd indicator (81) is present on the 2nd winding stem wheel, both the indicators rotating in the same direction and showing the amount of reserved spring power using relative variation in the movement of these indicators. A power reserve mechanism is structured with a simple mechanism without using a planetary gear mechanism. This power reserve mechanism 100 is provided separately with a first power reserve train wheel 150 serving for power reserve of a ratchet wheel 2 and a second power reserve train wheel 160 serving for power reserve of a barrel complete. A first indicator hand 51 is provided on a first power reserve wheel 5 in the first power reserve train wheel 150, and a second indicator hand 81 is provided on a second power reserve wheel 8 in the second power reserve train wheel 160. These first indicator hand 51 and the second indicator hand 81 rotate in a same direction. A spiral spring power storage amount is indicated due to a relative change of the both indicator hands.