Observer Temperature Reading

I've noticed that my new Observer registers a temperature that is approximately 6-8 degrees higher than the temperature my Casio registers even though neither watch has been on my wrist.

What could cause this discrepancy? Is there a way to recalibrate the Observer's temperature?

Over the several years I've had the Casio, I can confirm that it's temperature reading is pretty accurate.

	Suunto Observer - Click for more info The shock-resistant Suunto Observer is a tool built for outdoor challenges, but its timeless design makes it wearable in any situation. The Observer is 1/3 smaller in both diameter and width than the first generation Suunto Watches (Vector, Altimax, etc). It also features a chronograph, which previously was only offered in the Navitech but is now discontinued.