Timegrapher Advanced

Timegrapher Advanced turns your iPhone into a portable watch timing instrument—ideal for hobbyists, collectors, and professionals who want quick, clear readings at the bench or on the go.

Place a mechanical watch on a piezo or on top of an external mic, press Start, and watch a live screen measure the rate (s/d), beat error (ms), and amplitude (°).

Core measurements
• Rate in seconds per day
• Beat error in milliseconds
• Amplitude in degrees (with adjustable lift angle)
• Manual BPH for common beat rates
• Sensitivity control plus an auto sensitivity sweep to find a clean pickup level

Chart that works like a real timegrapher
• Dual-line tick/tock paperstrip with progressive slope from rate
• Line separation tracks beat error (near-overlap when BE is excellent)
• Portrait dashboard or full-screen landscape chart with rate, BE, amp, BPH, and lift
• Customizable colors, scale (±100 to ±999), and optional scale gridlines
• Optional live tick waveform pip to confirm clean escapement sound

Automatic sweep
• Sensitivity sweep will scan through your microphone's sensitivity range to autodetect the optimal setting used for capturing data
• Sensitivity sweep uses a weighted algorithm to measure signal, noise, captured data, events, and elects the best data on a scoring mechanism

Calibration you control
• Factory default tuned from real multi-watch sessions
• Create and edit profiles against your hardware timegrapher (gold standard)
• One-tap Calibrate after 20 seconds of live data to capture app raw and bake offsets

Workflow with Timegrapher Logging (separate app)
• Optional deep-link integration: measure an orientation (including isochronism / 24h rows) in Advanced, then Capture and Send straight into Logging

Built for real use
• Metrics clear to −/− when the watch is off the mic—no frozen last reading
• Quiet-room friendly piezo/mic workflow with optional tick noise filtering
• Diagram noise reduction for a calmer strip
• Clean, focused UI

Whether you’re regulating a custom build, checking a Rolex, or logging a full position set, Timegrapher Advanced gives you a clear chart and numbers you can trust—and align to the instrument you already use.