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A unique series from a unique watchmaking studio

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A new design for a new era

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Breathing new life into tradition

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SBGR311G
Limited edition of 1,300 pcs

Caliber 9S 20th Anniversary Limited Edition

SBGR311

Heritage Collection

Php 265,900.00

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Features

Specifications

Exterior
Exterior: Stainless steel, Caseback: Stainless steel and sapphire crystal
Case back: See-through & Screw case back
Glass Material: Dual-curved sapphire crystal
Glass Coating: Anti-reflective coating on inner surface
Case size: Diameter 42.0mm Lug-to-lug 47.9mm Thickness 13.1mm
Band width: 21mm
Clasp type: Three-fold clasp with push button release
The perimeter of Band: 205mm
Movement
Caliber no.: 9S68 Instructions
Movement Type: Automatic with manual winding
Power reserve: Approx. 72 hours(3 days)
Mean daily rate: +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.
Normal usage accuracy: +10 to -1 seconds per day
Functions
Water resistance: 10 bar
Magnetic resistance: 4,800 A/m
Weight: 174 g
Other details / Features:
  • Serial number engraved on the case back
  • Screw-down crown
  • 35 jewels
Watch finder

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’s unique movement technology generates power through a mainspring like other mechanical watches but combines this with the Tri-synchro Regulator for extraordinary precision.

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.