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Jeff Suovanen编辑

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[* black] First stop, the Digital Crown. Apple made a lot of fuss over how cool this is, so of course we put it in a box and shot it full of rays.
[* black] Despite its tiny size, the crown features a very classical mechanical design—threaded components and a hefty bushing.
[* black] As we saw in our [guide|40655|original teardown|stepid=93708|new_window=true], the portion of the crown shaft on the inside of the watch body is covered in tiny notches. Immediately below this, what appears to be an optical sensoremitter/sensor reads as the notches spin by.
[* black] As we saw in our [guide|40655|original teardown|stepid=93708|new_window=true], the portion of the crown shaft on the inside of the watch body is covered in tiny notches. Immediately below this, what appears to be an optical sensoremitter/sensor reads as the notches spin by.
[* black] Boom, [http://en.wikipedia.org/wiki/Rotary_encoder|encoder|new_window=true].