Seiko

Grand Quartz

Name: Seiko Grand Quartz
Brand: Seiko
Availability: InStock

36mm Popular Model

Low $299

Median $399

High $489

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Seiko’s Grand Quartz belongs to the moment when quartz accuracy was something to celebrate on the dial, not hide behind it. These watches bring the crisp hands, carefully finished markers, and sharply defined cases of Seiko’s better mechanical watches to an unapologetically electronic proposition.

The earlier 4840, 4842, and 4843 family offers the more straightforward route into Grand Quartz. For the more technically ambitious chapter, look to the later 9940 and 9943 Twin Quartz models: a second quartz oscillator helps compensate for temperature changes affecting accuracy. That distinction matters more than the shared name. Before choosing one, establish whether its movement is intact and free of battery leakage; a watch that ticks is not necessarily delivering its original precision, and finding someone equipped to diagnose these older electronics can be the harder part of ownership.

MovementQuartz

Case Size36mm

What owners love

The dial furniture rewards a close look: sharply finished hands and raised markers catch the light beautifully. Owners often point to those details, along with the crisp case facets, as the reason a Grand Quartz feels special on the wrist.
The accuracy is part of the enjoyment, particularly with the twin-quartz 9940 and 9943 models. Owners of healthy examples still report remarkably small deviations rather than simply praising them for being quartz.

Common Criticisms

Replacement electronic components can be difficult to find if the movement develops a fault. Owners restoring these watches sometimes end up needing a donor movement, and finding someone willing to tackle the electronics can be frustrating.

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Grand Quartz

What owners love

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