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
Collections
World of Grand Seiko
News
Support
Stores
Language

SBGR309G

SBGR309

Heritage Collection

USD 4,500.00

Search Stores

Features

A 3-day power reserve with lasting quality

The watch has a maximum 3-day power reserve and combines the latest in hairspring technology with an escapement developed through the MEMS technology to achieve high accuracy and stability when worn.
The exterior exudes a strong sense of presence and a tireless luxury befitting the Grand Seiko standard.
The delicacy, strength and beauty of the movement can be enjoyed the exhibition case back.

Specifications

Exterior
Exterior: Stainless steel
Case back: See through Screw 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.
Functions
Water resistance: 10 bar
Magnetic resistance: 4,800 A/m
Other details / Features:
  • Screw-down crown
  • 35 jewels

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 rise the performance of quartz to the high standards of Grand Seiko.