S T O P    W A T C H E S
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   60sec/30min; 1/5  sec - Go/Stop/Reset
                         - HANHART / Germany                       (1972)

   30sec/15min; 1/10 sec - Go/Stop/Go/Stop/Reset
                         - BREITLING / Swiss                       (1960)

   30sec/15min; 1/10 sec - Go/Stop/Go/Display+Continue/Stop/Reset
          ("Split-Hand") - CAMERO [= HANHART / Germany ]  / Swiss  (1981)

   30sec/30min; 1/10 sec - Go/Stop/Go/Display+Continue/Stop/Reset
          ("Split-Hand") - SLAVA / USSR                            (1957)
                           Was used in "Sputnik" Count-Down

   60sec/60min; 1/10 sec - Go/Stop/Go/Stop/Reset
                         - JUNGHANS / Germany                      (1962)

» R E F A «  STOP - WATCHES
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                    REFA = Reichsausschuss fuer Arbeitszeitermittlung
                       ( ~ Committee for Work-Time-Inquiry )
                 PURPOSE:  Optimization of Workflows ...

(A) 60sec/30min; 1/5 sec - Go/Stop/Go/Display+Continue/Stop/Reset
          ("Split-Hand") - HANHART / Germany                       (1970)
                         + » REFA Watch «
      1/100 MIN SEGMENTS = Timing for Rationalize Assembly Lines

                1 MINUTE = 100 TIME-UNITS

(B)   1/100 MIN SEGMENTS = Timing for Rationalize Assembly Lines
                   30min - Go/Stop/Go/Stop/Reset
                         - IBA Industriebedarf Berlin / Germany    (1970)

      What is the meaning of the  2 INVERS & NON-LINEAR OUTER SCALES  ???
      ===================================================================
                  1 Revolution / X TIME-UNITS  ==>>  Y Revolutions / Hour

[BLK] Outer BLACK Scale  =  60 ... 2000   like a  »Tachymetre«  Scale ...

      e.g.: When 1 Revolution is stopped in  25 TIME-UNITS (= 15 Seconds)
                        than the BLACK Scale shows 240 Revolutions / Hour
                                                   ======================
[RED] Inner  RED Scale   =  30 ... 60
      -------------------------------------------------------------------
      e.g.: When 1 Revolution is stopped in 125 TIME-UNITS (= 75 Seconds)
                        than the  RED Scale shows   48 Revolutions / Hour
                                                    =====================
impressum:      PS.:  An '80s "Plastic-HANHART"(Go/Stop/Go/Stop/Reset)...
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© C.HAMANN          http://public.BHT-Berlin.de/hamann           09/05/22