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Glossary of watchmaking

Foudroyante (Jumping seconds or hand) (Flying seconds)

Foudroyante (seconde ou aiguille) | フドロワイヤント | 跳秒指针(跳秒或跳秒指针)(跳秒)

On a chronograph, a hand that makes One rotation every second, pausing four, five, even eight times to indicate quarters, fifths or eighths of a second.

Also called foudroyante.