The application to which the time of the electric wave clock is adjusted.
About JJYEmulator
JJYEmulator is a tools app developed by mokyuu.
Download Statistics
JJYEmulator has been downloaded 270 thousand times. In the last 30 days, the app was downloaded 2.3 thousand times.
User Ratings
JJYEmulator is rated 4.73 out of 5 stars. The rating is based on 1 thousand ratings.
App Information
JJYEmulator is FREE to download. The APK download size is 7.49 MB. The latest version available is 1.6.3. The last update was on July 3, 2025.
Technical Requirements
JJYEmulator requires Android 2.3+ or higher. The app has a content rating of Everyone. The app has been available on Google Play December 2014.
Description
Note We will receive more emails requesting radio clocks from other countries, but since you can not create it without materials, please attach the clear material you need.
It outlines the steps to transmit the time sync audio beeps with headphones to the watch, which after a few minutes, results with the watch being synced as if the watch owner was actually in Japan.
This application synchronizes with the time of your smartphone. To synchronize the time accurately, it is recommended to use a time synchronization application etc. to make the time of your smartphone accurate.
Place headphone speakers by the atomic radio clock’s internal antenna, with the volume as high as possible before it starts to distort. Or, place the clock’s internal radio antenna as close as possible to the smartphone speaker. Again, with the volume as high as possible before it starts to distort. When time sync receive mode is active, the clock will sync within 2 to 3 minutes.
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Works excellent, I find If I put metal under watch it helps receiver in watch. One issue is it uses local time and some watches ⌚️ know the region and will not receive unless set to Tokyo area. App needs option to broadcast Tokyo JJY time. Then when finished rest to non JJY time zone. Work around is to then manually adjust hour on watch after it has updated.
★★★★★Fazeel Jeddavi· Aug 7, 2025
Excellent app.... helped me to sync my Casio & Seiko watches
★★★★★John Spence· Jul 26, 2025
I bought a Citizen PMD56 radio-controlled watch that was a Japan Domestic Product. I live in the US and obviously can't receive the Japan atomic clock transmissions. The watch arrived set to Tokyo time, 13 hours ahead. This app was totally trouble free and perfectly easy. The only problem I had was figuring out how to set the watch in reception mode. Once I did, I left my phone and the watch sitting together and the time, day and date reset to correspond with the settings on my phone. Thank you!
★☆☆☆☆Ramy Ebeid· Sep 9, 2022
Keeps getting Japan time not local, signal is great and watch gets it really clear but not local time
★☆☆☆☆trayan dimitrov· Apr 13, 2025
, radio waves and sound waves are fundamentally different. Radio waves are electromagnetic waves, which can travel through a vacuum, while sound waves are mechanical waves that require a medium like air to travel. Radio waves are too quiet for humans to hear, requiring special devices like radios to convert them into audible sound, whereas we can directly hear sound waves
★☆☆☆☆B. Bluebriz· Nov 28, 2022
Doesn't work on my Casio watch inside Japan.
Google Play Rankings for JJYEmulator
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Technologies used by JJYEmulator
JJYEmulator is requesting 9 permissions and is using 4 libraries.
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