radio watch sync

Contains adsIn-app purchases
5.83K reviews
Content rating
Everyone
100K+
Downloads
Content rating
Everyone
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Screenshot image
Screenshot image
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About this app

I have a Casio G-Series radio watch, but it is always unable to receive radio waves from time signal station, so I started to write an application to solve this problem.

After some research, I finally wrote this application, which can perfectly simulate the timing signal and happily calibrate the time.

Usage method:
1. Adjust the volume of phone to the maximum.
2. Switch the radio controlled watch / clock to manual wave receiving mode.
3. Click the "start" button.
4. Place the watch / clock near the phone speakers.
5. The synchronization process generally takes 3-10 minutes, please wait patiently.

Matters needing attention:
1. Please try to use the software in a quiet environment to avoid signal interference.
2. The volume of the mobile phone must be adjusted to the maximum. It's too small and the effect is not good.

Characteristic:
1. Supports simulation of all types of Time Wave Signal:
* China BPC
* USA WWVB
* Japan JJY40 / JJY60
* Germany DCF77
* British MSF
2. The unique "Beast Mode" provides higher frequency simulation signals and faster sync.

Contact information:
Please contact me if you have any use questions
*QQ: 3364918353
*Email: 3364918353@qq.com
sync your radio watch anytime and anywhere
Updated on
Jul 22, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    App activity, App info and performance, and Device or other IDs
  • This app may collect these data types
    App activity, App info and performance, and Device or other IDs
  • Data is encrypted in transit

Ratings and reviews

5.61K reviews
Matt Sauls
September 3, 2026
This is for a Citizen Sport Luxury chronograph. I live in Florida, and each night since I've owned the watch has been a hit or miss getting a successful signal. First, I press the bottom presser 2 times, not fast, just average. On the Citizen it brings the identifier into receiving mode. I then turned on the frequency app, aiming at 9 o'clock where the watch's internal antenna is. It did switch back to timekeeping after awhile, and it successfully received the signal. Great app: signal 100%.
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Aron Kropf
July 7, 2026
So I picked up a new Citizen PCAT and was having trouble getting it to sync. After researching I found this app and tried it. The first te it failed and wasn't sure why but I found out you need to lay yhre watch face down on the phone speaker when you sync. I tried again and it worked great.
1 person found this review helpful
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Saji Abraham
June 28, 2024
It took a few tries of positioning each of them but I was able to sync up my 3 Casio watches. After syncing the first one and reading the reviews, I knew what I was getting into in terms of payment and how many times I'd be adjusting the position of my other watches, I opted to pay upfront. Easy to use interface. The noises are high pitched and can be annoying but the app worked for me.
17 people found this review helpful
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What’s new

bug fix
Content rating
Everyone
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App support

About the developer
Jin Ning
lanyu2014sc@163.com
玉山镇 雍景湾南苑3幢507室 昆山市, 苏州市, 江苏省 China 225766

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