seapro Standard Model Instruction Manual And Warranty page 27

Moveable Bezel
Some models include a turning bezel.
To use the bezel as a timing device, follow the usage
example as described below.
To keep track of a parking meter which expires in 30
minutes:
1. Confirm the current time ( ex. 3:45 PM.)
2. Rotate the bezel so that the is placed at the same
position as the minute hand ( ex. 45 min mark.)
In the diagram on the right, you can see that at current time of 4:05 PM, 20 minutes have elapsed
and 10 minutes remain before the parking meter expires.
Note:
When not in use, line up the triangle or dot with the 12:00 marker.
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