The Seiko Watch Corporation, founded in Tokyo in the late 1800s, has become one of the most well-known watch manufacturers in the world. While Seiko is most well-known for quartz battery powered watches now, they have a long tradition of mechanical watches. Adjusting a modern automatic Seiko watch is simple, but a few special rules need to be followed to be sure to wind the watch properly, as well as to avoid damaging the date wheel.
Pull the crown--the small metal knob on the right side of the watch case--away from the watch until it clicks once.
Rotate the crown counterclockwise to advance the date wheel. Turn until the date is set properly. Pull the crown away from the watch until it clicks again, placing it in the final crown position.
Rotate the crown clockwise or counterclockwise to adjust the time forwards and backwards. Once the time is correct, push the crown back into the watch until it clicks twice.
Rotate the crown clockwise in this position to wind the mainspring if the watch is not running. To fully wind the watch, gently turn the crown until it will no longer turn easily.
An automatic watch may need to be wound before it will run if it has not been recently worn. It can be wound either by wearing it, or by turning the crown clockwise.
Always be gentle with your watch crown, as breaking the stem is a costly mistake.