TurkayCorrect. It will only keep time for a few hours without being worn. If you change up your watch you may want to buy somethign that will occasionally rock or move it so that it does not stop keeping track of time.
Turkay@Kschwerin I would argue quite the opposite. Kinetics are excellent for somebody who changes their watch often. Mechanical movements commonly have 38 hours of power reserve, or about 1 and a half days. On the other hand, Kinetics have up to 6 months of power reserve. It stores it's power in a capacitor rather than a mainspring. It takes about a week of normal daily wear to get to the full 6 month charge. (This is just an average I found after wearing a Kinetic for about a year.) This means you can leave a Kinetic in a watch box for weeks or even months at a time and it will keep accurate time.
ChristopherJThen something must be wrong with the ones myself and my dad have had as none last over the weekend without being worn and we both have the watch listed in this buy.
KschwerinKinetics take a lot longer to charge than automatics. A basic automatic could fully charge in a day, but a kinetic could take over a week to fully charge. Also, automatics charge with every movement of the rotor, while kinetics require more rapid rotor movements. They don't charge with minuscule rotor movements- just something to keep in mind.
This watch also has a power reserve function by way of the button at 2 o'clock. See the Seiko manual or our second paragraph about how to use the power reserve.