Japan's Top Inventions - Season 1 - Eps 5: Quartz Wristwatches
The behind-the-scenes tales of hit products and creations from Japan: this is Japan's Top Inventions. This time, quartz wristwatches, which caused a "timepiece revolution" with their accurate timing. Built in Japan in 1969, the world's first quartz wristwatch drifted only 0.2 seconds a day, making it about 100 times more accurate than previous watches. Even now, 96% of watches around the world use the same system. We trace the drama behind the creation of this super-accurate timepiece.
About Japan's Top Inventions

Title: Japan's Top Inventions
First Air Date: 2018-03-18
Last Air Date: 2025-02-15
Status: Returning Series
Rating: 0/10 (from 0 votes)
Language: EN
Seasons: 8
Total Episodes: 90
Network: NHK WORLD-JAPAN
Genres: Documentary
Production Companies: NHK, Japan International Broadcasting (JIB)
Synopsis
Japanese inventions are used and loved around the world. Through interviews and reenactments, go behind the scenes and discover how Japanese craftsmanship brought these top inventions into being.