CASE : Chrome plated, 33 mm .
BACK : screw, steel .
S/N and “ Stahlboden “ on the D.H.
D.U and “Stahlboden “ on D.U .
MOVEMENT : AS 1130 no name .
PUNCHING : D.H. or D.U.
– D.H. have letters larger ( 2 mm ) than numbers “”( 1 mm ) ;
– D.U. letters ( 2mm ) without numbers .
S/N : Small number of recorded watches ( 4 DH and 2 DU ) .
DH have 4 digits . The range obtained from the observed watches could be 12XX / 41XX .
NOTE : S/Ns are purely indicative .
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