Chronographer

Periodically collect data points, comparing your watch’s time to the current correct time. Chronographer stores this information and uses it to create charts tracking each watch’s offset (the difference from the correct time) and daily rate (how many seconds it’s gaining or losing per day). You can view graphs showing individual data points and best-fit trend lines over various time spans. Histograms provide insight into how offset and rate values are distributed. Chronographer also calculates detailed metrics about each watch’s accuracy.

Chronographer can track the watches you wear each day, allowing you to compare wrist time and to see how long it’s been since you’ve worn each of your watches.