With the
X10 you can downlod maps into the Trek manager software that comes with the watch and calibrate them in the program for use for planning out a route that can be programmed into the
X10.
Well the software is old and buggy, and has a horrible UI (and does not support mac). But one of the quirks is that you are forced to use Polar Coordinates in order to calibrate the map to the software.
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 | Suunto X10 |  | Suunto commemorates 10 years with the Suunto X10. When you're trekking through a new frontier, adventure racing, biking, fishing, or conducting field operations, the Suunto X10 provides critical decision-making data. With full GPS functionality, including route planning and uploading, as well as outdoor essentials like an altimeter, barometer, and compass, the Suunto X10 wristop computer shows nature who's boss. | |  |
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