GRAND SEIKO

SBGA229G

Grand Seiko Sport Divers Spring Drive Mens Watch SBGA229G

Grand Seiko Sport Divers Spring Drive Mens Watch SBGA229G

This diver’s watch is powered by Grand Seiko’s unique Spring Drive calibre, which combines the motive force of a mainspring with the high precision of a quartz watch. The watch is water resistant to a depth of 200 meters and utilises LumiBrite for increased visibility of the hands and index. Designed for use in some of the most unforgiving environments, the rotating bezel is removable for simple maintenance while the area around the crown has been crafted to ensure that residue from dirt, sand, or seawater can be easily washed off.

Exterior
Exterior: Stainless steel
Case back: Screw case back
Glass Material: Sapphire crystal
Glass Coating: Anti-reflective coating on inner surface
LumiBrite: Lumibrite on hands and index(es)
Case size: Diameter 44.2mm Lug-to-lug 51.0mm Thickness 14.0mm
Band width: 22mm
Clasp type: Three-fold clasp with secure lock & push button release, solid & slide adjuster
Bracelet Length: 195mm
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
Magnetic resistance: 4,800 A/m
Other details / Features:
  • Unidirectional rotating bezel
  • Screw-down crown
  • Three-fold clasp with secure lock and extender
  • 30 jewels
  • Power reserve indicator

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