Jenny Caribbean 1500 Archived Omega answered the challenge with

Omega answered the challenge with the release of the Omega Seamaster 300 (Reference 2913) in 1957 (the same year that Omega released the Speedmaster)

the result is a visually-arresting watch

though they can easily slip almost undetected into a dinner party

it got people talking

and has a flawless dial and hands

Jenny Caribbean 1500 Archived Omega answered the challenge withWhen you hear the name "Jenny," you'd be forgiven for thinking of Forrest Gump. But in the world of vintage watches, Jenny (pronounced "Yanni") means one thing: divers. Founded in 1963, Jenny's primary focus was producing professional grade dive watches, and at that they excelled. During the mid 1960s, Jenny patented their MONOBLOC Triple Safe case designs, which were used on their own self branded pieces, as well as contracted by brands like Fortis.