The other watch is often a Seiko “Golden Tuna” dive watch, Ref. 7459-7009 (previously mentioned), which the secret agent wore in the course of the movie’s submarine research sequence. Traditionally, the watch, whose nickname arrives from its “tuna can” situation, was the first dive watch which has a quartz motion https://www.watchesworld.com/from-sean-to-daniel-tracing-the-evolution-of-james-bonds-iconic-watch-collection/