Masterpiece Collection

A unique series from a unique watchmaking studio

Evolution 9 Collection

A new design for a new era

Heritage Collection

Breathing new life into tradition

Sport Collection

Designed for those who love sport and aim high

Elegance Collection

Contemporary elegance for exceptional occasions
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SBGE307G
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SBGE307

Sport Collection

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Features

Specifications

Exterior
Exterior: High-intensity titanium
Case back: See-through & Screw case back
Glass Material: Dual-curved sapphire crystal
Glass Coating: Anti-reflective coating on inner surface
LumiBrite: LumiBrite on hands, index(es) and bezel
Case size: Diameter 44.5mm Lug-to-lug 50.0mm Thickness 14.9mm
Band width: 23mm
Clasp type: Three-fold clasp with secure lock & push button release, solid & slide adjuster
Movement
Caliber no.: 9R66 Instructions
Movement Type: Spring Drive
Power reserve: Approx. 72 hours(3 days)
Accuracy: ±15 seconds per month (±1 second per day)
Functions
Water resistance: 20 bar
Magnetic resistance: 4,800 A/m
Weight: 152 g
Other details / Features:
  • Screw-down crown
  • Allergy-safe metal
  • Three-fold clasp with secure lock
  • 30 jewels
  • 24-hour hand (dual time display function)
  • Power reserve indicator
  • Calendar-linked time difference adjustment function

The three movements at the heart of Grand Seiko

9SMechanical

One of the world's foremost mechanical movements, the culmination of high-precision micro-engineering and the attention to detail of Seiko's expert watchmakers.

9RSpring Drive

Spring Drive is a unique movement that delivers one-second-a-day precision, using just the power of a mainspring.

9F Quartz

The ultimate quartz movement. Caliber 9F incorporates several unique technologies that raise the performance of quartz to the high standards of Grand Seiko.