FQuartz

“W hat makes a good watch?” Everything started from that simple question. “It has of course to be accurate, but this is meaningless if it is not legible. Large and thick hands are better at catching the light in the darkness. But a quartz watch cannot rotate heavy hands. So how do we manage to do that?” e engineers discussed the matter always keeping in mind the concept that a Grand Seiko watch should be “accurate, legible and beautiful.” ey embarked on the development of innovations to realize the impossible, a quartz movement strong enough to move large and heavy hands.

“What makes a good watch?” Everything started from that simple question. “It has of course to be accurate, but this is meaningless if it is not legible. Large and thick hands are better at catching the light in the darkness. But a quartz watch cannot rotate heavy hands. So how do we manage to do that?” e engineers discussed the matter always keeping in mind the concept that a Grand Seiko watch should be “accurate, legible and beautiful.” ey embarked on the development of innovations to realize the impossible, a quartz movement strong enough to move large and heavy hands.

e result was the Caliber 9F. Created in 1993 by the inquiring minds of the Grand Seiko engineering team, it is the embodiment of an ideal. With a high accuracy rate of ±10 seconds per year, the innovative Twin Pulse Control Motor makes it possible to move broad and heavy hands. In addition to the Twin Pulse Control Motor, watch, including a Backlash Auto-Adjust Mechanism to reduce the shuddering of the seconds hand and an Instant Date Change Mechanism. Furthermore, the protective shield construction encasing the rotor, the heart of the quartz movement, protects it from dust. e wall that separates the battery from the gear train to avoid dust contamination even contains a peephole studded with a ruby for observation during battery changes. is system is designed to preserve the long-term reliability of the quartz movement even with its regular battery changes. not visible as it is covered by the case back. e way a quartz watch should be was following its birth, Caliber 9F is still at the pinnacle of quartz movements and might just be the best quartz watch movement in the world.