A slim three hand movement
Caliber 9F51
Caliber 9F51 marks the most compact 9F caliber design to date. It retains hallmark features of the 9F series, including the Twin Pulse Control Motor, which generates the torque required for Grand Seiko’s large hands; the Backlash Auto-Adjust Mechanism, which eliminates seconds hand shudder; and a regulation switch for manual fine-tuning of accuracy during servicing.
Specifications
| Accuracy | ±10 seconds per year |
|---|---|
| Battery life | Approximately 3 years |
What makes 9F Quartz special?
The quartz watch, redefined to the Grand Seiko Standard. To meet the high standards of Grand Seiko, the 9F quartz movement has enhanced precision and durability, made possible by innovations in every aspect of the movement. This might well be the most advanced quartz movement in the world.
