Yes I agree and they do work in space.But do that experiment very slowly like you were say in a confined space . Now find the movement your arm would do to get rotor to move. Now try that break dance move in something the size of a Porta Potty or Space Shuttle.
All kidding aside , I'm just saying it would be less effective . Now back to the joking , if God had meant Automatics to go into space NASA would have put them there.

: Yes! But you are not likely to go for a 5K
: run Posted By: Doug Sprott Date: 1/17/08
: 22:06 GMT

: In Response To: A rotor operates on inertia,
: not gravity, so... (Chicagoland Chuck
: Maddox)

: Yes But you are not likely to go for a 5K run
: on a space station Frankly, I'm not
: likely to go for a 5k run here on earth.

: -2001 movie aside-. I've had clients that
: were elderly, very much the armchair
: astronauts and sedentary, that have said
: their automatics did not work . But after a
: day of wear on my wrist and moving around
: ,fighting gravity, everything worked well.I
: would bet the bag of M&Ms the power reserve
: would be less than on earth and the winder
: boxes would not work . Gravity holds the
: rotor in place as the watch moves around .
: The rotor's inertia would have to overcome
: the friction of the bearing and winding
: spring . I guess you can always tell the
: NASA automatic guys , they are the ones
: violently shaking their wrists.That and the
: digital quartz Seiko on the other wrist like
: with H. Furrer. Ok, I have a test for
: you. You'll need an full-rotor automatic
: watch with a display back or take the back
: off of a steel backed full-rotor automatic
: watch.

: Put the watch in a dial/crystal down position.
: Now, move the watch away from you and then
: back. Or to the left and right while keeping
: the watch flat and in parallel to the
: ground.

: Does the rotor move back and forth? The Earth's
: gravity is operating equally on all parts of
: the watch and is perpendicular to the plane
: of the rotor. Since the rotor moves, it must
: be the watch's inertia which is moving the
: rotor.

: Now I will grant you that gravity will probably
: enhance the rotor's function, but inertia
: alone will move the rotor and wind the
: watch. -- Chuck
: Chuck Maddox

: Chronographs, like most finer things
: in life, only improve with time...
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