Ok what I'm trying to achieve is to speed up and/or slow down an analog clock using arduino.Its powered with a single AA battery
I think it's quartz (it says that on the back). Inside you can see several different speed motors. As I don't have my arduino stuff here right now, I just took my samsung galaxy s 3's battery and used unfolded clips to connect it. + to +, - tried ti 2 pins; one gave speed maybe similar to the normal, one was kinda stuttering. I don't know much about motors and clocks. Is it possible to speed it up or slow it down without disassembling it (maybe as I said, adjusting volts/amps/PWM'ing the +)? Any help will be appreciated!!
I quartz clock with motors ?
As far as I know a quartz clock uses a single motor, that is connected with gears.
You could activate that motor with an Arduino, but you have to make a circuit that drives it with 1.5V.
In the Arduino sketch you can make it run faster or slower.
Lol using a galaxy s 3 battery the speed was almost double - 15s on clock passed in 7 actual 
But how to make it run normally when boost is off?