11 Ott HELBROS D.H.
CASE . Chrome plated, 34 mm .
BACK . Screw, steel .
Outside shows the S/N and Helvetia’s code number ( 3190 ).
Inside there are the letters “CB “ .
MOVEMENT . Helvetia Cal. 82 A personalized “ Helbros Watch Co “
CASEBACK MARKINGS: D.H. only .
Letters and numbers are small (1mm) typical of Helvetia .
S/N . The scarcity of registered watches (3) does not allow to define a range .
NOTE . in real terms this is a Helvetia watch branded Helbros.
1. Probably , Helbros merely assembled D.H. watches with their own brand but using Helvetia components .
2. The last three photos refer to a Helbros assigned to the Medical Service ( Sanitaestsdienst)
HELBROS Medical Service ( Sanitaetsdienst)