Watch Spring

Watch Spring measures the accuracy of your mechanical watch. The watch accuracy checking is designed to work with manual and automatic mechanical watches. Your watch’s accuracy is measured by comparing the time on your watch with the time on your iOS device. This accuracy data allows Watch Spring to use this information to:

- Uses statistics to calculate your watch’s overall accuracy
- Show how the accuracy of your watch changes over time
- See how long you have been wearing each watch

Other features include:
- Import and export your watch accuracy history
- Export charts and graphs for sharing with your friends, watchmaker or on social media
- Notifications to remind you to check your watch’s accuracy
- Clock with seconds hand for setting the time on your watch
- Intuitive, simple to use, iOS native app