[Modell 104  --  OHNE G-Nachweis]
The unit has NEVER worked since I purchased the item.  The issues are
1) when you FULLY wind the watch it stops in under 20 hours
2) if you over wind the watch the watch time can increase by over an hour
The watch has already been returned to your office and within two weeks the same issues have reoccurred
Given this is item is not fit for purpose and has never worked, I want a full refund