The Watch could acquire messages from M and even print them on a ticker-tape to become conveniently read through afterwards. Quite in advance of its time for the seventies, I’d say. The Gruen Precision became synonymous with Bond’s early adventures. He wore a single that has a black material strap https://www.watchesworld.com/from-sean-to-daniel-tracing-the-evolution-of-james-bonds-iconic-watch-collection/