Re: wristwatch altimeters

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.

<[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
> 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?