Chronograph & Complication Trainer

Free Play Mode

Experiment with the chronograph pushers and rotating bezel. The main hands show real local time. The red central hand is the chronograph seconds hand.

How to Use a Chronograph

A chronograph is a stopwatch built into a watch.

1. Press Start. The red central seconds hand begins moving.
2. Watch the 30-minute subdial (right) and 12-hour subdial (bottom) advance.
3. Press Stop when the event ends. Read the elapsed time.
4. Press Reset to return all chrono hands to zero.

Dive Bezel – Elapsed Time

Unidirectional rotating bezel used by divers.

1. Switch Bezel type to Dive (Elapsed).
2. Note the current position of the minute hand.
3. Rotate the bezel so the luminous triangle (▼) aligns with the minute hand.
4. As time passes, read elapsed minutes directly from the bezel scale.
5. It only turns one way for safety.

Tachymeter – Measure Speed

Converts elapsed time over a fixed distance into units per hour.

1. Switch Bezel type to Tachymeter.
2. At the start of a measured distance, press Start.
3. At the end, press Stop.
4. Look where the chrono seconds hand points on the tachymeter scale.
5. Formula: Speed = 3600 ÷ elapsed seconds

GMT / Dual Time Bezel

A 24-hour rotating bezel lets you track a second time zone.

1. Switch Bezel type to GMT / 24h.
2. The bezel shows 24 hours instead of 60 minutes.
3. Set the bezel so current home time aligns with the hour hand.
4. Read the second time zone against the bezel markers.