Atomic Sync : Radio Watch Time
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About this app
⏱️ 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 (coming soon)
✨ HOW IT WORKS:
1️⃣ Select your region or time signal
2️⃣ Place your phone near your watch (see visual guide)
3️⃣ Tap Start and wait 1-10 minutes
4️⃣ 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 weekly, bi-weekly, or monthly. 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
• Try near a window for better signal propagation (optional)
⚠️ 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.
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 (coming soon)
✨ HOW IT WORKS:
1️⃣ Select your region or time signal
2️⃣ Place your phone near your watch (see visual guide)
3️⃣ Tap Start and wait 1-10 minutes
4️⃣ 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 weekly, bi-weekly, or monthly. 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
• Try near a window for better signal propagation (optional)
⚠️ 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.
Sync radio-controlled watches. Works with Casio, Citizen, G-Shock & more
Updated on
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.
What’s new
⏱️ Atomic Sync is here!
Sync your radio-controlled watch with atomic time signals — no tower needed. Supports WWVB, DCF77, JJY, MSF, BPC. Works with Casio G-Shock, Citizen, Lacrosse & more.
✨ Features:
• 5+ official time signals
• Beast Mode for faster sync (watch ad)
• Offline mode — no internet required
• Smart reminders (weekly/monthly)
• 16 languages • Dark mode • Privacy-first
Free forever. No subscriptions. Just sync. ⚡
Sync your radio-controlled watch with atomic time signals — no tower needed. Supports WWVB, DCF77, JJY, MSF, BPC. Works with Casio G-Shock, Citizen, Lacrosse & more.
✨ Features:
• 5+ official time signals
• Beast Mode for faster sync (watch ad)
• Offline mode — no internet required
• Smart reminders (weekly/monthly)
• 16 languages • Dark mode • Privacy-first
Free forever. No subscriptions. Just sync. ⚡
Everyone
Learn moreApp support
phone
Phone number
+48575635776
About the developer
SERHII SEREDA
support@qalc.ai
Ul. Krokusowa 4-55
30-430 Kraków
Poland
+48 575 635 776
