Chronographer
Track the long-term accuracy of your mechanical watches.
Periodically collect data points comparing a watch’s time to the current correct time. Chronographer stores this information and uses it to create graphs tracking each watch’s offset (the difference from the correct time) and deviation (how many seconds it’s gaining or losing per day). Graphs show individual data points and best-fit trend lines over various timespans. Chronographer also calculates detailed metrics about each watch’s accuracy.
Please contact me if you have any questions, suggestions, problems, etc., related to Chronographer.