Grand Seiko Spring Drive "Skyflake" SBGA407 Grand Seiko Watch Review

roadwarrior

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Spring Drive caliber 9R65 include 3-day power reserve

Dec 7, 2019

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The 2019 Grand Seiko Elegance Spring Drive (SBGA407) "Skyflake" is encased in 42.5mm of stainless steel surrounding a blue Snowflake dial on a blue alligator leather strap. Features of this Grand Seiko Spring Drive and its Spring Drive caliber 9R65 include 3-day power reserve, hours, minutes, seconds, date, and power reserve indicator. This Grand Seiko watch also measures 13.1mm in thickness and 48.1mm from lug-to-lug.


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Grand Seiko Elegance Collection

Spring Drive

SBGA407

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CONCEPT

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A classical case that conveys the atmosphere of the first GS, and a spring drive model that reflects the "snowflake blue" dial, has emerged. The distinctive dial pattern, which is inspired by the beauty of the snow in the Shinshu region. This pattern is known as "Snowflake" and used mainly as dial finish, and has gained popularity from around the world. This is the first blue color model to be colored while emphasizing the delicate texture of Japanese paper, which is unique to snow and white dials.

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Snowflake dial


The Snowflake dial used for the first time in 2005 was colored with pale blue to image the snow from the Shinshu Watch Studio, the birthplace of Spring Drive.
It has succeeded in realizing a designer's idea of expressing the beauty of Shinshu on the dial, and is characterized by a texture that shows a rough snow surface, which is caused by severe cold.

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AUTOMATIC SPRING DRIVE 3-DAY

Caliber 9R65

Our company unveiled Spring Drive in 1999, but its lack of a sufficiently effective automatic winding mechanism and 72-hour power reserve prevent its adoption in the Grand Seiko line. After a further four years of development, the first Grand Seiko 9R Spring Drive was created.
The winding system and drive time were improved from the existing 48-hour manual winding system to an automatic 72-hour power reserve. The automatic winding mechanism uses Seiko's original Magic Lever mechanism developed in 1959, but with improved productivity, maintainability, and durability to enhance winding efficiency.
Caliber 9R65 is currently the most standard of the 9R Spring Drive movements, and is used in many Grand Seiko models
FEATURES

A Spring Drive model with a classic case and blue “Snowflake” dial


The unique dial pattern is inspired by the wind-swept snow in the mountains of Shinshu. This texture is commonly known as the "Snowflake" and has gained popularity from around the world. To emphasize the delicate dial, it is treated with a subtle blue coloring.

A classic mechanism with a detailed focus, Spring Drive enables high precision equal to that of a quartz watch while using a mainspring used in a mechanical watch as a power source. The maximum winding duration is 72 hours. The movement of the blue steel second hand glides across the snow blue dial. Exterior
Stainless steel
Box shaped sapphire
Anti-reflective coating on inner surface
Diameter 40.2mm × Thickness 12.8mm
Crocodile leather
Three-fold clasp with push button release
  • Movement
    9R65 Instructions
    Spring Drive
    Approx. 72 hours(3 days)
    ±1 second per day / ±15 seconds per month (average)
Functions
10 bar
Equipped

  • ?30 jewels
  • ?Case back with 6 screws
  • ?Date display
  • ?Power reserve display
  • ?See-through case back
  • ?Stop seconds hand function
 
A very attractive, standard size, spring drive, three hand, from Grand Seiko.:wink: Thanks Mike.:hat:
 
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