Currently, the tree-and-sun-logo is still used on some movements ...
By: Marcus Hanke : October 7th, 2010-05:33
... at least that of the GMT Perpetual. I cannot recall having it seen on the Sonata movement, though. You are right, it was practically never used on the dials, but only as a stamp or engraving on the inner side of solid casebacks. Personally, I like the...