24H  H A M I L T O N  CHRONOMETER  Lancaster, Pennsylvania / USA  (1941)
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Kaliber = 4992B  / 22 Jewels  /  Adj.Temp. & 6 POSITIONS  / SN = 4C13193

        H O W   T O   O P E N   T H E   H A M I L T O N :
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PRESS the watch against a SILICON-MAT and turn it counter-clockwise to
UNSCREW THE BACK-LID !!

This 24H "Greenwich-Civil-Time" *) mechanical watch was made in WWII for
the US GOVERNMENT.  It works in all "6 POSITIONS".  With FULL WIND-UP it
runs more than 50 hours. The BACK-LID has inner engravings  »KEYSTONE«
 
        E N G R A V I N G S   O N   I T S   B A C K   S I D E :
       ---------------------------------------------------------
        AN 5740 / MFR'S PART NO. 33106 / SERIAL NO. AF43-18037
           CONTRACT NO. W535ac-40783  /  HAMILTON WATCH CO.

H I S T O R I C A L    R E M A R K S :

      http://www.hamiltonwatch.com/spirit-history/history-timeline

impressum:                                   *) Definition see WIKIPEDIA
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© C.HAMANN         http://public.BHT-Berlin.de/hamann           03/22/15