Description
Grand Seiko Heritage CollectionCaliber 9S 25th Anniversary Limited Edition: SBGH311
Caliber 9S85
Driving system: Automatic
Frequency: 36,000 vibrations per hour (10 beats per second)
Accuracy (mean daily rate): +5 to -3 seconds per day
Power reserve: 55 hours
Number of jewels: 37
Specifications
Stainless steel case and bracelet
Dual-curved sapphire crystal with anti-reflective coating
See-through screw case back
Three-fold clasp with push-button release
Water resistance: 10 bar
Magnetic resistance: 4,800 A/m
Diameter: 37.0mm, Thickness: 13.3mm
Limited edition of 1,200
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