On Mar 15, 12:40 am, "BillJosephson"
wrote:
Hi. I am a bit confused. I saw this watch on Amazon and a reviewer
states it is not a real EB6:

"The E6-B rule bezel is incomplete, however operational. For a perfect
calculation, you must have a "mirror" of the main functions of the
rule bezel printed within the watch, just like any Jeppesen Computer.
[...]

First, please see; http://en.wikipedia.org/wiki/E6B

The term "E-6B" is mis-used for fairly generic slide rule watch
bezels, to give them an aviation flavor. Sometimes there's Statute-
Nautical mile, Gallons Fuel - Pounds Fuel, etc, markers added, but
it's still just a simple slide rule.

For instance, none that I know of have True Altitude or True Airspeed
calculations, commonly associated with the Slide Rule Model B that is
on a real E-6B.

One thing to be careful of, are cheap imitation watches. Often they
have a slide rule scale on the outer ring, and a different scale on
the inner. Or their numbers don't match up. Or they're totally non-
logarithmic and won't work as a slide rule.

Also, some cheap watches don't have a two-way smoothly rotating bezel,
but only a one-way divers-style clicker bezel.

The Seikos bezels are okay, and if you have super eyesight, fun to
play with when you armchair fly. Otherwise they're mostly just for
show ;-)

Also see the E6B styles at: http://www.hmewatch.com/

The most useful pilot watch I ever saw, was the expensive Oscar Bravo
series, which I can't seem to find a link for now. It had
interchangeable rings for different cruising speeds. They allowed
you to rotate the ring to the current time, and then read off the ETA
for different distances.

Regards, Kev