Nel 1988 nacque il primo modello Grand Seiko al quarzo, con un movimento estremamente performante caratterizzato da una precisione di ± 10 secondi all'anno.

This gets you incredibly accurate and consistent timekeeping, with Grand Seiko rating their 9F calibers to an excellent + or – 10 seconds But the quartz crystal is just the tip of the iceberg. Combined with the low-drain Twin-Pulse Control System for the hands, this temperature control system allows a battery life of three years.Watch hands are driven by a series of gears, and there is always a certain amount of play, or backlash, between the teeth that engage each wheel with the next. Although this backlash allows the gears to rotate smoothly, it is also responsible for the slight shuddering of the second hand, an imprecision that was unacceptable to the Grand Seiko designers.Inadvertent interference between the hour or minute hands and the second hand can occur during time adjustments, causing slight shaking in the thinner second hand. The 61GS was Japan's first In 2009, Seiko released the new ten beat caliber 9S85, which is a completely new design from the previous high beat caliber. The high-end Japanese marque is known for their classic mechanical and Spring Drive calibers, but they also makes some of the most impressive quartz watches currently on the market.

Precision and simplicity form the very essence of the ideal timepiece, allowing it to fulfill a lifetime of commitment to its wearer. Grand Seiko quartz models defy this limitation, bearing the same broad hand design as on every Grand Seiko watch.

In 1993, Grand Seiko achieved a new standard in quartz watches with the release of the 9F8 series which incorporated new features including the Backlash Auto-Adjust Mechanism, the Twin Pulse Control Motor, and the Instant Date Change Mechanism. Grand Seiko grows and ages their own quartz crystals for a period of three months, and they select only the highest quality and most stable crystals for use in their 9F calibers.Of course, quartz, like most things, is not without its shortcomings. Visita eBay per trovare una vasta selezione di seiko quartz movement. It is a chronograph movement that uses quartz technology for the main functions of the watch, and a mechanical module for operating the chronograph. Un circuito integrato rileva queste vibrazioni e invia ogni secondo un segnale orario accurato al motore passo a passo. Per poter rispettare gli standard elevati di Grand Seiko, il movimento 9F al quarzo ha migliorato la precisione e la durabilità dei movimenti al quarzo tradizionali. Nel 1988 nacque il primo modello Grand Seiko al quarzo, con un movimento estremamente performante caratterizzato da una precisione di ± 10 secondi all'anno. Nel 1993 Grand Seiko raggiunse un nuovo standard negli orologi al quarzo con il lancio della serie 9F8. Autodromo uses the Seiko caliber VK63 movement in their Prototipo model and calls it a “true mechanical reset chronograph.” Here is how they describe it: …Powered by an innovative Seiko hybrid meca-quartz movement, the Prototipo features a sweep second hand and instant chronograph reset thanks to internal mechanical linkages shared with Seiko’s in-house automatic movements. La batteria invia elettricità a un oscillatore al quarzo, il quale vibra esattamente a 32,768 volte al secondo. Quartz watches make use of a small battery cell as their source of electricity.But the crystal is just half of the equation — there’s also an electronic component to quartz watches. Conversely, if you apply electricity to a piece of quartz cut into the right shape — like a tuning fork — that piece of quartz will vibrate at a steady frequency. Quartz crystals are piezoelectric, which simply means that if you apply mechanical stress to a piece of quartz it will accumulate an electrical charge. This information is then fed to a small step motor, which drives the hands on the dial-side of the watch.Now that we have an understanding of the basics, let us explore what makes Grand Seiko’s 9F movements so distinct.We’ll  start with the quartz crystal itself. Visto che per azionare un sistema di controllo della temperatura è necessaria una notevole quantità di energia elettrica, gli orologi al quarzo che utilizzano la tecnologia sono confrontati con un trade-off con con la durata della batteria. The 9F quartz movement is used in Grand Seiko quartz watches. Quartz Movement. Nel 1993 Grand Seiko raggiunse un nuovo standard negli orologi al quarzo con il lancio della serie 9F8. To be specific, the relevant frequency is 32,768 oscillations-per-second. This is made possible by the selection of highly stable quartz crystals that are put through a rigorous aging process.Quartz oscillators are susceptible to temperature changes.Grand Seiko began its long history in 1960 with mechanical watches.

The Spring Drive was announced in 1997. La maggior parte degli orologi al quarzo standard non ha un programma di controllo della temperatura.