The opposite watch is often a Seiko “Golden Tuna” dive watch, Ref. 7459-7009 (earlier mentioned), which The key agent wore during the Motion picture’s submarine research sequence. Historically, the watch, whose nickname will come from its “tuna can” case, was the very first dive watch by using a quartz movement https://www.watchesworld.com/from-sean-to-daniel-tracing-the-evolution-of-james-bonds-iconic-watch-collection/