JAEGER LE COULTRE OBSERVATORY, BRITISH AVIATION POCKET WATCH, RAF, WW2, 1941 51 mm diameter chrome-plated brass case, painted metal dial, large seconds at six o'clock, burnished hands, case back British Aviation 6E/50 assigned serial no. A9782, movement with anchor escapement, large gilt plates. Watch currently in working order. JAEGER LE COULTRE OBSERVATORY, BRITISH AVIATION POCKET WATCH, RAF, WW2, 1941 The vast majority of these types of WW2 pocket watches are engraved GS for general service, this piece has the distinct advantage of being engraved 6E, marking it as being specifically used by RAF engineers.