wris****ch altimeters

Do any of the altimeters available in wrist watches work well enough
to be a coarse backup to the panel altimeter? How do they calibrate
for changes in pressure?

Coarse, yes. You set the altimeter setting on the watch at your starting
point, or at the reference point for ground level. At least that's how the
Vertech works.

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Do any of the altimeters available in wrist watches work well enough
to be a coarse backup to the panel altimeter? How do they calibrate
for changes in pressure?

"Juan..E.-Jimenez" b*d&5^-@-*b(d)5+.!c#o$m wrote in message
news:1uczb.400300$HS4.3233692@attbi_s01...
Coarse, yes. You set the altimeter setting on the watch at your starting
point, or at the reference point for ground level. At least that's how the
Vertech works.
I have a Nike-branded altimeter watch. It seems accurate enough if it
is set before a flight and it gives you a neat graph of a flight, but it is
not so good if you want to know your altitude from moment to moment. It
only seems to update about every five minutes or so, although you can
manually force it to update with several button pushes. I wanted it so I
could cheat a bit when I do "covered altimeter" work with my students, but
its usefulness for this is limited.

Vaughn