Casio watches at the Toshio Kashio Memorial Museum of InventionCasio watches at the Toshio Kashio Memorial Museum of InventionBy Sam Byford Jun 29, 2015, 8:21 AM UTC|CommentsShare this storyPreviousNext1/21 The GMW-15, from 1989, had a graphic display to show moon phases and sunrise/sunset times.CommentsMost PopularGoogle launches Gemini, the AI model it hopes will take down GPT-4PlayStation keeps reminding us why digital ownership sucksGoogle is ending the year with a big update for Pixel devicesGoogle’s Bard chatbot is getting way better thanks to GeminiThere’s a new iMessage for Android app — and it actually worksFrom our sponsorAdvertiser Content From