radio watch sync

Contains adsIn-app purchases
4.8
4.88K reviews
100K+
Downloads
Content rating
PEGI 3
Screenshot image
Screenshot image
Screenshot image

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
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

4.8
4.7K reviews
John King
November 4, 2025
I cranked up the volume to 11, kicked off a manual receive then placed my g-shock with the back of the watch facing the speaker. Hit start and a few minutes later time was adjusted. My watches usually automatically sync at night but manually they almost always fail. I had one that hasn't updated and with the recent time change it was an hour off so I got this app. World the first time for me. Thanks
1 person found this review helpful
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Zaky Fuard
November 15, 2025
At first I was unable to do it with my Citizen Eco-Drive. After the beast mode was on, I successfully synced by placing the phone's speaker above the 9 on the watch dial. Operation was simple and easy. Took me about 5-7 minutes. Ads are pretty annoying though especially when enabling the beast mode. Overall it's a great effort. Kudos to the developer for taking the trouble!👍🏾
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Mike Smith
October 2, 2025
Excellent .. I'm in the Philippines and my nearest time keeping transmitter is in China, which my Casio watch is able to use but my Seiko clock can only receive the Japanese signal in this part of the world, so I tried this app with some degree of skepticism and it works perfectly. I received a full signal from Japan with the phone placed nearby and it updated within 4 minutes, all I had to do was select -1 to compensate for the 1 hour time difference .. superb.
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What’s new

bug fix