Durtois Fils, ParisThe substantial entablature supported on four turned Doric columns, raised on a double plinth base and four block feet, the columns cut to receive four glass panels, the front and rear being removable, the signed 5 inch enamel dial with Roman chapter, centre seconds and blued steel Breguet hands, the two train drum movement with outside countwheel strike on a bell and pinwheel escapement to a gridiron pendulum with knife edge suspension. 60cm (23.75in)