GOLD, ENAMEL AND DIAMOND POCKET WATCH, CONSTANTINOPLE, CIRCA 1845 28 mm diameter yellow gold case, back decorated with brown enamels on a flamed guilloché background, Souvenir inscription decorated with small diamonds, white enamel dial with Roman numerals, Breguet hands, signed dust cover, movement with cylinder escapement. Watch with antique case, winding key, watch currently in working order. Weight 15.8 g AN 18K YELLOW GOLD POCKET WATCH WITH ENAMELS AND DIAMONDS, COSTANTINOPLE 1845 CIRCA