Grand Seiko Spring Drive has an accuracy of +/- 1 second per day which is twice as precise as the best Rolex Superlative Chronometer, more precise than a METAS certified Master Chronometer, and numerous times more accurate than a COSC certified Chronometer.
Is Spring Drive a good movement?
Spring Drive is a unique movement that combines the high torque of a mechanical watch with the high precision integrated circuit (IC) control system of an electronic watch. The precision control of the IC allows for a high standard of accuracy, with Grand Seiko quartz models achieving a yearly rate of ±10 seconds.
How long will a Spring Drive movement last?
They will service watches for about 20 years after release. This is only if parts are still available.
Is a Spring Drive automatic?
Mechanics. The Spring Drive uses a conventional mainspring and barrel along with automatic and/or stem winding to store energy, just as in a traditional mechanical watch.
Is Spring Drive better than automatic?
They also use the spring drive, but the spring is wound automatically by a moving weight instead of manually. By it's very nature a hand wound watch would be more durable, longer lasting, less complicated and lighter than an automatic, all other things being equal.
What does the Spring Drive do?
Spring Drive is a unique movement that combines the high torque of a mechanical watch with the high precision integrated circuit (IC) control system of an electronic watch. The battery sends electricity to a quartz oscillator, whose precise vibrations are detected by an integrated circuit (IC).
Do Spring Drive watches have a battery?
Spring Drive is powered by a mainspring, just like all other mechanical watches. This traditional way of generating power allows the watch to be entirely autonomous, with no need for a battery or other power source.
Is Spring Drive as accurate as quartz?
Spring Drive is the most accurate watch on the market now. Grand Seiko Spring Drive combined the ingenuity of traditional mechanical watch engineering with the quartz movement's accuracy to produce an accuracy of 1-second +/-.
How long will a Spring Drive last?
Spring Drive has a power reserve of 72 hours, even if the chronograph is in continuous operation. In 1959 Seiko invented an original component from the winding mechanism of a mechanical watch, the 'Magic Lever.
Will Spring Drive last forever?
As far as the Spring Drive Movement the self wind spring will probably last forever. The battery that runs the timing circuitry will eventually need to be replaced.
Is Seiko Spring Drive reliable?
Spring Drive is the most accurate watch on the market now. It's more precise than METAS certified Master Chronometer and COSC certified Chronometer watches. And it's twice as accurate than Rolex Chronometer Superlative.
Is Spring Drive more accurate than quartz?
Spring Drive is like a traditional mechanical watch movement powered by a spring, but regulated by a more accurate quartz crystal. Each type of movement uses a different kind of power source and a different way of keeping time — the two key elements of any watch.
How accurate are Spring Drive watches?
Accuracy of ±15 seconds a month While Spring Drive is powered by a mainspring, its incorporation of a quartz oscillator for speed control allows it to deliver a remarkable level of accuracy, ±15 seconds a month which is equivalent to one second a day.