CASE :  Chrome plated,  33 mm 

 BACK  :  Screw,  steel  

 the S/N,  “ Stahlboden “ and “ Rostfrei “ .

MOVEMENT  :  AS 1130  no name 

CASEBACK MARKINGS:  D.H.  only 

Letters are larger ( 2mm ) than numbers ( 1,5 mm ) .

 S/N  :  6 digits . One batch with range  912XXX  /  917XXX .

 NOTE  :  S/Ns and batch are purely indicative .