Launched in 1920, completed in 1922, displacement 876 (surfaced)-1.092 (submerged) tons, horsepower 2.000 (surfaced)-1.200 (submerged) hp, oil-fired internal combustion machinery (surfaced)-electric machinery (submerged) and an armament of 1-3” gun, 4-21” torpedo tubes and 12 torpedoes.
Source
Archive Dutch Naval Staff 1886-1942 (National Archive at the Hague, Netherlands) inventory number 155. Fleets (the British Empire and foreign countries) on 1 February 1923.
