The Watch Encyclopedia

Mean daily rate

An average daily gain or loss derived from a defined set of observations or test conditions.

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.