Time runs slow
Mission One is based on smart-wearable device structure which requires internet signal to calibrate time.
So it will slowly run late if disconnected with a smartphone. (Most smart devices without internet are the same)
Currently if MISSION ONE is connected with ATMOS APP. It’ll calibrate the time background.
We have improved it from the firmware 1.019. Please update you MISSION ONE to the latest: Update firmware
Contact us for more help: (Fb message) https://www.facebook.com/atmosocean