GRAND SEIKO

SBGA437G

Grand Seiko Heritage Watch SBGA437G

Grand Seiko Heritage Watch SBGA437G

Shinshu, the region where all Grand Seiko Spring Drive watches are created, was once a major center of silk production. This classic design has a dial whose silken sunray pattern pays tribute to this heritage. The fine grain of the pattern radiates outwards and catches the light at every angle. It has a soft texture, as if it were the finest silk, which can only be created by the application of soft silver, using a special method of silver plating.

Exterior
Exterior: Stainless steel
Case back: Screw case back
Glass Material: Dual-curved sapphire crystal
Glass Coating: Anti-reflective coating on inner surface
Case size: Diameter 40.0mm Lug-to-lug 46.6mm Thickness 12.3mm
Band width: 20mm
Clasp type: Three-fold clasp with push button release
The perimeter of Band: 203mm
Movement
Caliber no.: 9R65
Movement Type: Spring Drive
Power reserve: Approx. 72 hours(3 days)
Accuracy: ±15 seconds per month (±1 second per day)
Functions
Water resistance: 10 bar
Magnetic resistance: 4,800 A/m
Other details / Features:
  • Screw-down crown
  • 30 jewels
  • Power reserve indicator

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