The model is the Heller 1/400 Admiral Graf Spee.
It shows the German Panzershiffe as she looked during the famous Battle of the River Plate on December 13th, 1939.
You may notice that the camouflage is correctly on dark grey and not on green as wrongly thought for years due to a model made on the 50's of the Graf Spee.
A survivor recently confirmed the dark grey dazzle camo and assured the green is wrong.