The watch was received 3 weeks ago, it has been worn between 7-9 hours a day some 4 days and manually wound but it has stopped working. After one rewind it stopped in 3-4 hours, spring knob was not released for further rewind (I did not want to apply force). 
Recommended energetic shake 10-12 times gave the effect for 3 hours more. Seems that spring does not power it, only the pendulum movement.  Please replace / repair accordingly. Regards, Gatis
Warranty card Nr T 3005-3