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In the hit TV series Seinfeld, the character George Costanza wears a Gruen Moonphase watch. This watch has a black, leather strap, gold case and white dial with a beautiful Moonphase on the one half of the dial. Costanza is played by Jason Alexander who was a regular on the show.
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Watches have a particular significance in the Seinfeld universe, with Jerry Seinfeld being a huge fan of Breitling’s and apparently has one of the biggest Breitling collections on earth. Gruen are a US company that is known for using high quality, Swiss movements in their watches.