 SMS Hamburg ( " His Majesty 's Ship Hamburg " ) was the second of seven Bremen @-@ class cruisers of the Imperial German Navy , named after the city of Hamburg . She was begun by AG Vulcan Stettin in Stettin in 1902 , launched on 25 July 1903 and commissioned on 8 March 1904 . Throughout her over 40 @-@ year long career , she served with the Imperial Navy , the Reichsmarine , and the Kriegsmarine . Armed with a main battery of ten 10 @.@ 5 cm ( 4 @.@ 1 in ) guns and two 45 cm ( 18 in ) torpedo tubes , Hamburg was capable of a top speed of 22 knots ( 41 km / h ; 25 mph ) . 
