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Heritage Collection Mechanical Hi-Beat 36000 SBGH347

A high-beat mechanical watch depicting the fantastic scenery of an icefall on its dial

SBGH347G
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SBGH347

Heritage Collection

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Features

This creation exhibits a new dial pattern while inheriting a classic Grand Seiko case design. The dial evokes an icefall that one might encounter in the dead of winter on Mount Iwate, the imposing peak visible from the Grand Seiko Studio Shizukuishi, home to Grand Seiko mechanical watchmaking. Such frozen waterfalls are natural phenomena whereby the water flowing downward gradually solidifies when the temperature drops below freezing. This fantastic scene is depicted on the dial through the dynamic and detailed pattern, as well as a unique icy-blue color.

Specifications

Exterior
Exterior: Ever brilliant steel, Caseback: Ever brilliant 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 37.0mm Lug-to-lug 44.6mm Thickness 13.3mm
Band width: 19mm
Clasp type: Three-fold clasp with push button release
The perimeter of Band: 192mm
Movement
Caliber no.: 9S85 Instructions
Movement Type: Automatic with manual winding
Power reserve: Approx. 55 hours
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: +8 to -1 seconds per day
Functions
Water resistance: 10 bar
Weight: 142 g
Other details / Features:
  • Screw-down crown
  • 37 jewels

A dynamic and detailed dial

The city of Hachimantai in Iwate Prefecture is the home of Nanataki, a 30-meter waterfall that originates from a stream that flows down Mt. Iwate. The dial represents this frozen waterfall, which creates massive icicles during the coldest time of the year. The new dial pattern and color illustrate the dynamism of the frozen Nanataki and the mysterious expressions found in the bluish-white hue of the ice.

Ever-Brilliant Steel with superior corrosion resistance

Ever-Brilliant Steel is a stainless-steel material that boasts higher corrosion resistance than the stainless steel used in regular high-end watches (indeed, it has the highest level of corrosion resistance in the world), one that shines with a brilliant white. Ever-Brilliant Steel has a PREN (pitting resistance equivalent number) that is 1.7 times that of the steel typically seen in luxury watches.

Caliber 9S85

This high-frequency mechanical movement was developed by rethinking the parts that form the foundation of the watch’s precision, granting the level of torque necessary to maintain a high oscillation rate and realizing a practical power reserve of about 55 hours when fully wound.

Details of the Caliber 9S85

Option strap

Strap

XGL00119

Band width: 19mm
Clasp width: 16mm
Color: Black
Material: Crocodile
  • Available at the Grand Seiko Boutiques and selected Grand Seiko Salons

Strap

XGL00319

Band width: 19mm
Clasp width: 16mm
Color: Brown
Material: Crocodile
  • Available at the Grand Seiko Boutiques and selected Grand Seiko Salons

Strap

XGL00519

Band width: 19mm
Clasp width: 16mm
Color: Navy
Material: Crocodile
  • Available at the Grand Seiko Boutiques and selected Grand Seiko Salons

Strap

XGL00719

Band width: 19mm
Clasp width: 16mm
Color: Light blue
Material: Crocodile
  • Available at the Grand Seiko Boutiques and selected Grand Seiko Salons

Strap

XGL00919

Band width: 19mm
Clasp width: 16mm
Color: Elegant light green
Material: Crocodile
  • Available at the Grand Seiko Boutiques and selected Grand Seiko Salons

Strap

XGL01119

Band width: 19mm
Clasp width: 16mm
Color: Warm orange
Material: Crocodile
  • Available at the Grand Seiko Boutiques and selected Grand Seiko Salons

Strap

XGL01319

Band width: 19mm
Clasp width: 16mm
Color: Light gray
Material: Crocodile
  • Available at the Grand Seiko Boutiques and selected Grand Seiko Salons

Clasp

XGN00116

Clasp width: 16mm
Clasp material: Stainless steel
  • Available at the Grand Seiko Boutiques and selected Grand Seiko Salons
Watch finder

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9SMechanical

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