Lance Guest wears an unidentified watch

Lance Guest wears a steel dive watch as Michael Brody in Jaws: The Revenge (1987). The close view shows a steel case with a black dial, a dive bezel and luminous markers on a dark strap, a fitting tool watch for the marine biologist. The dial's branding doesn't read, so the maker stays open. If you recognise it, or want to guess, say so in the comments.