Authentic vintage porcelain enamel advertising sign for Favre-Leuba watches, showcasing bold red background with contrasting white and yellow lettering. Marked Bombay and Calcutta, it represents the heritage of premium watch retailing in India. A desirable collectible for both watch enthusiasts and enamel sign collectors. Original vintage porcelain enamel advertising sign. Brand: Favre-Leuba with Zenith, Sandow, John Barrel, Eterna. Location: Bombay – Calcutta. Size: 20 x 6 inches. Era: Mid 20th century watch advertising. Condition: Enamel loss, surface rust, and edge wear visible (see photos). Mounting: Four corner holes for easy hanging/display.