MoyiWave - Atomic Watch Sync

Sync your radio-controlled watch (Casio Wave Ceptor, Citizen Atomic, Seiko Astron) anywhere in the world. Six time signal stations supported.

MoyiWave turns your iPhone into a portable time signal transmitter. Sync your Casio Wave Ceptor, Citizen Atomic Timekeeping, or any radio-controlled watch in minutes -- even when you're traveling far from any broadcast tower.

--- HOW IT WORKS --- Place your watch near the iPhone speaker, tap Start Sync, and let the encoded signal do its job. Most watches will detect the signal within 2-3 minutes.

--- SIX GLOBAL TIME STATIONS ---

• JJY 40 kHz / 60 kHz: Japan (NICT)
• WWVB 60 kHz: USA (NIST)
• DCF77 77.5 kHz: Germany (PTB)
• MSF 60 kHz: UK (NPL)
• BPC 68.5 kHz: China (NTSC)

--- MORE THAN A SIMPLE TRANSMITTER --- Engineering Mode reveals the real-time bit stream, color-coded BIT GRID, and live time code decoding. Perfect for watch enthusiasts, ham radio operators, and anyone curious about how radio time codes really work.

--- FEATURES ---

• Real-time signal generation with industry-standard timing
• AM/PWM/PPM modulation matching each station's spec
• Automatic DST handling for DCF77 / MSF / WWVB
• Engineering Mode with BIT COLOR waveform and BIT GRID
• Live decoded fields: year, day-of-year, weekday, parity bits
• Pulse Indicator with realistic signal noise visualization
• Dual transmission channels (top earpiece + bottom speaker)
• 10-minute auto-stop to save battery
• Dark and light themes
• Works completely offline -- no account, no data collection

--- WHO IS IT FOR? ---

• Casio G-Shock, Oceanus, Edifice owners
• Citizen Eco-Drive Atomic owners
• Seiko Astron and other radio-controlled watches
• Hobbyists and engineers studying time code systems

--- PRIVACY --- MoyiWave runs 100% offline. No analytics, no ads, no tracking, no account required.

--- NOTES ---

• Set your watch to manual reception mode (RCVD) for best results
• Maximize iPhone volume during transmission
• Place watch within 2 cm of the speaker
• Some watches (especially metal cases) may need multiple attempts

Developed by MoyiLab. Website: www.moyilab.com