The model is equipped with SLAVA 2427 self-winding movement manufactured by The Moscow Second Watch Factory, steel case and bracelet, helium valve. Impermeability 500 m. underwater (50 ATM).
Sadko, the hero of slavic folklore - a musician, successful merchant and a patriot of Novgorod land. (Wikipedia article about Sadko)
Original model of Second Watch Factory didn't run in mass production due to many reasons and only dozen of pieces are found now. These samples considered to be most rare and valueable pieces of Soviet watch making production and sought after by collectioners.
