Mike, you are right - Rozovyi Myod ("Pink Honey" is an English translation of this Russian variety from Siberia) usually can get you a very huge fruit even in a cold climate.
There are many other Siberian tomatoes with very big fruit (up to 1 kg on first several trusses): Bezrazmernyi (="Dimensionless" in English, red), Vashe Blagorodie ("Your Honor", pink), Babushkin Secret ("Granny's Secret", pink), Vechnyi Zov ("Perpetual Call", red), Lyubimyi Prazdnik ("Favorite Holiday, pink), Gordost Sibiri ("Pride of Siberia", red), Korol Gigantov ("The King of Giants", red), Korol Sibiri ("The King of Siberia, yellow heart-shaped type), Korol Koroley ("The King of Kings", red - I'm still in search of seeds of it in Russia) and some others.
Plus I'm adding my Orange Minsk to this "king size list"