Leave a Review JJY Simulator
I wish it was in English
The app is all written in Japanese so it is difficult to set it up to transmit automaticallyAdrhjgrxhjhgfd
Great app
Great app, working well with my radio controlled watch purchased in Europe. Received a medium strength signal through earphones and took about 2 min to sync. Fully recommended!RSNH99
Useless
I have a G-Shock tough solar GW-M500A-1CR and I am in Canada but the watch seems to struggle receiving the transmission and it always shows L1 and then error. So I decided to install this app to strengthen the signal but it doesn’t work.Poorya Rashidi
Working well in Sydney Australia
Syncs my seiko wave controlled clocks without effort after about 10 to 15 minutes or less. Updates time in our Timezone and date perfectly using iPhone 8. Occasionally (once or twice a year) in the summer months the clock auto reverts to Japan time (Trans Equatorial Propagation (TEP) effect?), and I need to recalibrate using this app. Thank you for a very useful app!Show lessdevorn1
Very useful and efficient tool 非常好用的软件
我是CASIO GW-5600J，时区选的是HKG。因为是五局电波表能接收日本电波。以往只能在旷野或者高楼无遮挡的地方手波。用这个软件，先把手机时区调成东京，后打开这个软件，音量调到最大，开始发波。然后手表GW-5600J打开收波，把表盘九点钟位置的背面对准手机喇叭，固定手表不动。一分钟左右看到收波信号能达到三格，一定要不动手表，等待短则两分钟长则五分钟就能听到成功收波的滴声。谢谢作者。test4guest
Must have for JDM watch owners.
I own a Citizen watch that was released only for Japanese domestic market. The watch has atomic time radio sync, which unfortunately only works in Japan. After some research, I found JJY simulator which replicates Japanese atomic time radio signal and synchs your watch to your phone’s time. The app worked great, it is a very simple and straightforward process. My watch synchronized within a few minutes. Make sure that the phone’s volume is at maximum and place your watch close to your phone’s speakers.Show lessSixtyLion
Perfect
Automatically set new Seiko wall clock from Japan to local Australian Time - thankyouray_HAM
Works perfectly in Australia
Tested this on a old radio control seiko watch just now worked perfectly. As other review mentions it syncs to iPhone time. Brilliant app. 使いやすくてすごく便利です。Happy_dragon
Didn't work on CASIO PRW-2500B
Didn't work on my CasioMr.Shi
not success at gw5000
rtkwanchiming
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