Atomic Sync : Radio Watch Time
No in-app products collected for this app.
| Rating | |||
|---|---|---|---|
| Russia | 44%4 | 4.25 | |
| United States | 22%2 | 2.50 | |
| Australia | 11%1 | 3.00 | |
| Czech Republic | 11%1 | 3.00 | |
| Italy | 11%1 | 5.00 | |
| United Arab Emirates | <1%0 | — | |
| Afghanistan | <1%0 | — | |
| Antigua And Barbuda | <1%0 | — | |
| Anguilla | <1%0 | — | |
| Albania | <1%0 | — |
Description
Sync Your Radio-Controlled Watch in Minutes!
Atomic Sync emulates official atomic time signals to synchronize your radio-controlled watch — no tower reception needed. Works with Casio G-Shock, Citizen, Lacrosse, Junghans, Braun and other atomic watches.
SUPPORTED TIME SIGNALS:
WWVB (60 kHz) — United States
DCF77 (77.5 kHz) — Germany / Europe
JJY40 / JJY60 (40/60 kHz) — Japan
MSF (60 kHz) — United Kingdom
BPC (68.5 kHz) — China
RBU (66.66 kHz) — Russia
HOW IT WORKS:
1. Select your region or time signal
2. Place your phone near your watch (see visual guide)
3. Tap Start and wait 1-10 minutes
4. Your watch syncs to atomic time — done!
BEAST MODE (Premium Sync):
Need faster sync? Watch a short rewarded video to activate Beast Mode — our enhanced signal algorithm for quicker, more reliable synchronization. Unlimited use, no subscriptions.
SMART REMINDERS:
Set local notifications to remind you to sync your watch daily, weekly, bi-weekly, monthly or custom. Never lose atomic precision again.
OFFLINE & ACCURATE:
All signals generated locally — no internet required for sync
Optional NTP time source sync for maximum accuracy when online
Last known time cached for offline use
USER-FRIENDLY DESIGN:
Dark/Light theme (auto-switch)
Universal positioning guide with animated signal waves
Simple 4-step flow, no brand selection needed
16 languages supported
PRIVACY FIRST:
No location access required
No personal data collected
No account registration needed
COMPATIBLE WITH:
Casio G-Shock, Pro Trek, Edifice • Citizen Eco-Drive • Lacrosse Technology • Junghans Mega • Braun watches • And any watch supporting WWVB/DCF77/JJY/MSF/BPC signals.
TIPS FOR SUCCESS:
Use maximum phone volume during sync
Keep phone and watch still, 2-10 cm apart
Avoid metal surfaces and electronic interference
DISCLAIMER:
Atomic Sync is a third-party tool and is not affiliated with, endorsed by, or connected to Casio, Citizen, or any watch manufacturer. Time signal emulation is for personal use only. Success depends on watch model, environment, and device hardware.