| 05.01.1904: |
Commissioned. |
| -23.03.1904: |
Training and trials. |
| 30.03.1904: |
Decommissioned. |
| 10.01.1905: |
Recommissioned. |
| 07-19.05.1905: |
Fleet exercises near Rügen. |
| 01-07.08.1905: |
Exercises to train torpedo attacks and their defenses. |
| 08-12.10.1905: |
Training with the IV. torpedo boat division. During this exercises, the Undine
rams the torpedo boat S126
which is cut into two parts and sinks. |
| 03.05 - 09.06.1906: |
Repairs in Wilhelmshaven. |
| 10-27.02.1907: |
Repairs in Wilhelmshaven. |
| 22.08 - 08.09.1907: |
Participation in fleet exercises. |
| 29.01 - 27.03.1908: |
Repairs. |
| Summer 1909: |
Visit to Lavik. |
| 05.05.1910: |
During a storm, the Undine
assists the steamer Nordstern
. |
| 26.09 - 27.10.1910: |
Repairs in Danzig. |
| 05.09.1911: |
Participation in the fleet parade. |
| Jan - Feb 1912: |
Emergency ice services in the western Baltic Sea. |
| 12.07.1912: |
Decommissioned. |
| 04.08.1914: |
With the outbreak of the war, the ship is commissioned again and attached to the coastal defence in the Baltic Sea. |
| 03 - 09.09.1914: |
Operations in the eastern Baltic Sea, during this operation the Undine
had an engine breakdown. |
| 13-18.4.1915: |
Bombardment of Russian positions. |
| 07.11.1915: |
While escorting the ferry Preussen
, the Undine
is hit by two torpedoes of the British submarine E19
. The Preussen
and the torpedo boat V154
are able to rescue most of the crew, 25 crew members got killed. |
