Vostok Amphibian Radio Room

Vostok Amphibian Radio Room

The dial is a homage to the radio room clocks used in ships. The sectors correspond to time slots where you are required to listen for distress signals.

There is actually an interesting link between the RMS Titanic and the Vostok Radio Room. Many more Titanic passengers would have been saved had nearby shipping not switched off their radio sets for the night, so a convention was held in 1912 to update service regulations for the 500kHz (600 metre) international distress frequency. Amended again in 1932 to include 2182kHz the statue reads:

Operators of all coast stations are required, during the hours the station is in operation, to 'listen in' at intervals of not more than 15 minutes and for a period not less than 2 minutes, with the receiving apparatus tuned to receive this wave length, for the purpose of determining if any distress signals or messages are being sent.

The two colors correpond to two radio frequences used for distress calls; 500 kHz (Morse code, vide e.g. "SOS") and 2182 kHz (voice, vide e.g. "Mayday").
Therefore pink color on the Radio Room's face signifies the silence/listening period for 500kHz (on the hour and half-past the hour) and red signifies the silence period for 2182kHz (quarter-past and quarter-to the hour).