The Watch could receive messages from M and perhaps print them with a ticker-tape to become conveniently read through afterwards. Really in advance of its time to the 1970s, I’d say. Absolutely sure, Fleming utilized to have on a Rolex Explorer, and it is likely the watch he experienced in https://www.watchesworld.com/from-sean-to-daniel-tracing-the-evolution-of-james-bonds-iconic-watch-collection/