MON 01 JAN 2026
Collection
Keep your watches in one place: details, rate and power reserve per watch.
Open your collection →
Rate Meter
Measure how many seconds per day your watch runs fast or slow, with charts and measurement history.
Start measuring →
Power Reserve
Measure how long your watch runs on a full wind, reading the stop time straight off the hands.
Measure reserve →
Guide
New here? A walkthrough of every tool, plus a glossary of watch terms.
Read the guide →
Made by the Watch Café, a monthly meetup of watch fans at Dutch tech company Sioux →