The Watch Encyclopedia

Rate

Also known as: seconds per day · s/day

The amount a watch gains or loses relative to a reference over a stated time interval.

Good to know

Check the stated test scope and conditions. A specification or certification is not a guarantee about the current condition of an individual watch.

Watch library

Grand Seiko

Grand Seiko

Grand Seiko

Grand Seiko

Grand Seiko

Grand Seiko

Connections use recorded specifications. Features vary by reference.