Hen Dash: Precision Horology at Your Fingertips
Monitor amplitude decay rates, project service intervals, and maintain complete caliber documentation for your mechanical watch collection
Download Hen DashExclusive Bonuses for Watchmakers & Collectors
Free Caliber Database Access
- 12 pre-loaded caliber references with lubrication points
- ETA, Valjoux, and Unitas movement specs
- Immediate access upon installation
Unlimited Service Logging
- Track unlimited movements and calibers
- Full amplitude trend visualization
- Export service history as PDF reports
Extended Graph History
- Pinch-to-zoom amplitude graphs
- Multi-year decay tracking
- Position-specific measurement storage
Promotional codes valid for new installations. Features subject to device compatibility. Hen Dash requires timegrapher hardware for amplitude measurements. All data stored locally on your device.
How Movement Tracking Actually Works
Hen Dash transforms raw timegrapher data into actionable service forecasts. After measuring your watch movement amplitude across dial-up, dial-down, and crown-down positions, the application calculates decay rates in degrees per month. This metric reveals precisely how fast your mainspring loses tension and jewels accumulate friction.
The floor crossing algorithm projects the exact date when amplitude will drop below your caliber's critical threshold. For an ETA 2824-2 with a 230-degree floor, the system monitors horizontal, vertical, and positional averages to predict service windows months in advance. Every reading strengthens the forecast model.
Service event logging captures before-and-after amplitude jumps, documenting the effectiveness of cleaning, lubrication, and parts replacement. The matched-condition gain analysis compares identical winding states and positions, isolating the true improvement from your watchmaking work versus measurement variance.
Verified Specifications
Essential Capabilities for Watch Enthusiasts
Multi-Position Amplitude Graphing
Visualize horizontal, vertical, and dial-down performance on interactive line charts. Pinch to zoom into specific date ranges, tap service markers to review before-and-after measurements, and identify decay patterns across all positions simultaneously.
Comprehensive Service Documentation
Log cleaning operations, mainspring replacements, jewel changes, and lubrication overhauls with timestamp precision. Each service event stores pre-service and post-service amplitude readings, automatically calculating gain across matched winding conditions.
Caliber Specification Library
Access technical references for ETA, Valjoux, Unitas, and custom movements. Store vibrations per hour, lift angle, floor thresholds, and lubrication point diagrams. Search by caliber number or manufacturer to retrieve specs instantly during bench work.
Decay Rate Calculation Engine
Automatic regression analysis determines amplitude loss per month based on your measurement history. The algorithm weights recent readings more heavily, adapting to mainspring condition changes and providing realistic service interval forecasts.
Floor Crossing Projections
See the predicted month and year when your movement will cross below the critical amplitude floor. This forward-looking metric helps schedule maintenance before performance degradation becomes noticeable in daily wear.
Interim Reading Snapshots
Record amplitude checks without triggering a full service event. Perfect for monitoring movement health between overhauls, tracking seasonal temperature effects, or verifying regulation accuracy after positional adjustments.
Technical Implementation Details
Data Input Workflows
- Add new watch movements with caliber assignment and reference numbers
- Enter timegrapher readings for horizontal, vertical, and crown-down positions
- Specify winding state for each measurement: full wind, half wind, or run-down
- Tag service events with checkbox selections for work performed
- Attach photos of movement condition before and after maintenance
- Export complete service history as shareable documentation
Visualization & Analysis
- Color-coded trend lines distinguish horizontal, vertical, and floor position data
- Dotted threshold line marks caliber-specific floor amplitude value
- Service markers appear as vertical indicators on the timeline
- Semicircular gauge displays mimic traditional watch dial aesthetics
- Before-and-after comparison uses orange for post-service, white for pre-service
- Green gain badges highlight positive amplitude improvements
About the Development Philosophy
Hen Dash was built by watchmakers frustrated with spreadsheet tracking and paper logbooks. The vintage brown-and-orange color palette evokes classic horology workshop aesthetics, while the gear icons and circular gauges reference traditional timepiece design. Every interface decision prioritizes data entry speed during bench work, with large touch targets and minimal navigation depth. The application respects user privacy by storing all caliber specifications and amplitude measurements exclusively on-device, with no cloud synchronization or account requirements.
Begin Tracking Your Collection Tonight
Android Platform | Free Installation | Immediate Caliber Access
Download Hen DashRequires Android 5.0 or higher. Timegrapher hardware sold separately. Application displays educational content during initial setup. Recommended for users 16 and older with mechanical watch maintenance knowledge.