Mentor
From Chronopedia
Mentor
BADER & HAFNER S.A (to USA) Holderbank/ Soleure
History
Appears to be a post-War watch company and the "Mentor" name was a tradename filed in 1953 and subsequently registered on 6/1/1954 as a trademark for a company supplying watches, parts of watches, and watch cases. The last holder of the Mentor name was listed as, "Bader & Hafner, Holderbank," but as this takes the use of the name up to 1995, it is not sure when the use of the "Mentor" name on watches was discontinued.
