Caliber stories 9SA4
The Highly Anticipated Manually Wound
36,000 vibrations per hour (5 Hz) Caliber 9SA4 and its Sensory Appeal
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Part 1
Design
An Evolution 9 Style dress watch was made possible thanks to a hand-winding movement
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Part 2
Movement
Heightening the sensory value, a Grand Seiko like none before it, the SLGW002/003
