Mechanical watches are powered entirely by a wound spring, not a battery. Turning the crown (or the natural motion of your wrist, for automatic models) winds the mainspring, which slowly releases energy through a series of gears to drive the hands.
-Manual vs. Automatic-
A manual (hand-wound) watch needs to be wound by hand, typically once a day. An automatic watch winds itself using a rotor that spins with your movement, so as long as it's worn regularly, it stays powered.
-Why They Need More Care-
With over a hundred moving parts working together, precision and lubrication matter. That's why we recommend servicing every three years — to keep the gear train running smoothly and the timepiece accurate for years to come.
