The other watch is really a Seiko “Golden Tuna” dive watch, Ref. 7459-7009 (above), which the secret agent wore through the Motion picture’s submarine look for sequence. Traditionally, the watch, whose nickname will come from its “tuna can” scenario, was the very 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/