Junghans Watch Meister Fein Automatic Signatur 27/4355.00. he Meister fein Automatic Signatur excels with its many intricate, valuable details: Like the flat and discus-shaped case. Like the curved face and glass case back made of anti-reflective sapphire crystal. Like the dial with the historical Junghans lettering and the discreet diamond-effect lines for the hour markers. Admire the specially developed two-armed rotor through the extra-large glass case back.