Just for interest's sake, here is a short addition to what Crash mentioned
.
There are generally 4 types of watch movement:
1) Quartz (battery powered). These are either solar powered or require the button battery we all know and 'tick' once per second. Obviously the most accurate movement you can get, especially the thermo regulated variety and have the advantage of offering very small componentry, so the watch can be designed to be thinner/ smaller if so wished.
2) Manual/ hand wind: Basically, a main spring is coiled by winding the watch crown, and as it slowly releases its energy, gears and cams transmit the energy to the watch hands in a regulated and predictable rate. The 'ticking' you hear is the seconds hand stopping and moving a few times a second, so although the seconds sweep is almost continuous, it is actually just the seconds hand moving between 6-8 times a second, to complete '1 second'. Not all movements have the same beats-per-minute; some watches tick slower/ the seconds hand moves 6 ticks a second, per second (less smooth seconds hand sweep) whilst others have higher, 8 or above. The problem with having more beats-per-minute is that the power reserve of the watch suffers. A typical modern hand wind will only keep ~40hrs of energy in the spring on a full wind. More B.P.M. means the spring's charge is used more rapidly.
Below is a rather amusing (60 year old) clip of how a manual movement works, from the Hamilton watch company đź‘Ť (start at around 5mins...)
3) Automatic movements: Same as manual, except there is a rotor built into the movement that rotates as you move your hand around (its the round thing you can see at the back of my watch, and will be visible in the Seiko too). It means that as long as you are moving your hand around and getting the rotor to rotate, it is continually winding the main spring and your main spring will not run out of potential energy. When you stop wearing an auto, it basically becomes a manual watch, and would require hand winding to keep it going - again, typical autos retain ~40 hours of charge in the mainspring once taken off the wrist. a6m5, to wind your watch manually, just turn the crowd from 6->12 i.e. clockwise. đź‘Ť
4) Hybrid movements: Seiko developed a hybrid movement that uses both batteries and movements associated with mechanical watches to create 'Spring' drive. It is the smoothest movement in the world (think of a wall clock plugged into AC) and has no ticking. It does this by converting charge from the battery into movement using the mechanical components to ensure no break in the seconds sweep. Every expensive and I wouldnt want to think about whats involved in repairing one!!
PS:
on the compliments!