Abstract: In a temperature gradient adjustor for a temperature-compensated electronic watch, the temperature gradient adjusting range can be widened without any drop in the temperature gradient adjusting resolution of a temperature sensitive oscillator by adding a roughly temperature gradient adjusting variable frequency divider for variably dividing the frequency of the output of a temperature sensitive oscillator and by operating the temperature gradient adjustor at a value which is prepared by adding a constant numerical value to temperature gradient adjusting numerical information.A constant voltage supplying to a temperature sensitive oscillator can be finely adjusted from external side so as to optimize a linearity of frequency versus temperature characteristic.

Abstract: In an indication hand type stopwatch energized by a battery having a second indication hand, a minute indication hand and an hour indication hand, a battery lifetime display has a battery lifetime detective section for monitoring a voltage of the battery and a battery lifetime display circuit means connected to the battery lifetime detective section and for controlling the driving of the minute indication hand serving as a battery lifetime indication hand for displaying a battery lifetime while the stopwatch is in a non-counting mode.In the case that the battery voltage is over the predetermined voltage, the minute indication is driven by 15 steps clockwise in response to the operation of an external operation switch and in the case that the battery voltage is below the predetermined voltage, the minute indication is driven by 3 steps.