Orient WE (KL7) Instruction Manual page 13

 HOW TO USE THE ROTATING INDICATOR BEZEL
Please notice that some models come with a rotating indicator bezel, which
should be used properly.
Turn the bezel by pointing the
hand. While certain time goes by, you can measure
the elapsed time from the distance between minute-
hand and figures on the rotating indicator bezel. You
can also set the

you how long time is still remain for an appointment.
You cannot turn the bezel reversely since it comes
with a protection mechanism for preventing wrong
operation by force or shock. Figures on the bezel
could also help you to read the current time easily.
* Depending on design, anti-reversely and  minute
"click" sound mechanism on rotating indicator ring does not apply to some
models.
mark to the minute-

mark as a desired time to remind
Rotating indicator bezel
The above shows
that 20 minutes have
elapsed from 10:10.