Watch Glossary

Split-seconds chronograph with two independent stopwatch hands that can be separated and recombined.

Split-seconds chronograph where the second hand can be stopped independently to measure intermediate times.

Chronograph with countdown mechanism and acoustic signal for yacht race starting procedures.

Complicated watch striking hours, quarters, or minutes audibly when activated by pusher.

Two balance wheels oscillating together to improve stability and accuracy through mutual synchronization.

Paired balance wheels vibrating in resonance to improve chronometric stability and precision.

Complication with hand sweeping across arc then jumping back to start, indicating time passage.

Hand jumps back to start position instead of rotating continuously, creating dramatic visual effect.