@ JohnN: thank you very much for the kind words - I am still in the humble beginnings of my apprenticeship for Bell-Mastery
As far as I have found out, there are three versions:
a. Black, matte dial 6050T, black alarm ring w/blue inner ring, black bezel ring
b. Brown, matte dial 6040T, black alrm ring w/white inner ring, black bezel ring
c. Blue sunburst dial 6050T, blue alarm ring w/turqoise inner ring AND red alarm window, blue bezel ring
At least the black version was also available with 27 jewels, which should be reflected in the dial code (but I do not have the actual code at hand), maybe the mighty Bentley has a close-up shot for me?
Any corrections/comments are much appreciated!!
Best,
Hermann