This photo from the film - shows men of the Imperial Navy. Until the overthrow of the Tsar.
Red sailors removed the straps and imperial cockade.
The rest of the sailors uniforms remained the same.
Imperial Russian Navy flag - blue St. Andrew's cross on a white field.
Due to the fact that after the Bolshevik revolution is no regulation on the banners were not, many of the red flags were very unusual. One of these flags is shown in this figure - this flag was captured by the Poles in 1920, along with the red river war ship. Red sailors have replaced the blue cross of the imperial fleet - in red - "proletarian" colors.
Uniforms sailors and banners of river and sea vessels are unlikely to have differences in RCW.