From http://www.flashenabled.com:

secret spot watch menu (suunto) here’s a cool thing to do with your spot watch.
reset the watch by pressing both left button and the top right button. while the watch is resetting, press the top left button 2 times. to exit just reset the watch again. the settings you can look at/change include: lcd test, buzzer, antenna, buttons, charger, rf test, serial #, model/sku, contrast, delete test, save and exist, pca/rf test.

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