Possible Clues:

• Almost land-locked sea of NE Europe
• Almost land-locked sea of Scandinavia
• Get around to the sound of the clock, by the sound of it
• Near-landlocked sea of N Europe
• Sounds as if the round jerk is all at sea
• Sea in Europe
• N European sea
• By the sound of it, see round the clock, by the sound of it
• Sea in N.Europe
• Sight from Latvia