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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SBGJ277G
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SBGJ277

Sport Collection

May. 2024

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Features

Specifications

Exterior
Exterior: Stainless steel
Case back: See-through 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 44.2mm Lug-to-lug 50.6mm Thickness 14.4mm
Band width: 21mm
Clasp type: Three-fold clasp with push button release
The perimeter of Band: 201mm
Movement
Caliber no.: 9S86 Instructions
Movement Type: Automatic with manual winding
Power reserve: Approx. 55 hours
± seconds per month: +5 to -3 seconds per day
  • Mean daily rate is a mean value of daily rates in a condition where the movement before assembly in a case is measured in six positions in a fixed manner under artificially controlled environment for 12 days.
Functions
Water resistance: 20 bar
Magnetic resistance: 4,800 A/m
Weight: 188 g
Other details / Features:
  • Rotating bezel (24-hour display)
  • Screw-down crown
  • 37 jewels
  • 24-hour hand (dual time display function)
  • 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.