William Erhard English Hunter Sterling Pocket Watch Chain Key Wind Circa 1800's

Antique, English, sterling Key wind, with chain pocket watch. From circa 1800's, working, perfect, present with light sign of aging. Well kept, hunter , with brass, possibly touch of gold, or plated. Stunning work of art, symbolizing crest, of William Erhardt, Birmingham, possibly around 1821. All marked, hallmarked, lion sign of sterling. A treasure forever. No sign of defect. Triple cases. Size of pocket watch about 3"., approximately 5" chain,key.