Grand Seiko Elegance 'Skyflake' Automatic Spring Drive 3-Day SBGA407

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.
The design embodies a pure classical elegance with a box-shaped sapphire crystal, Zaratsu polished lugs, and a blue steel seconds hand complementing the Snowflake dial.
It has a maximum 72-hour (3-day) power reserve, and a power reserve indicator on the bottom left of the dial showing the amount in reserve.
Wearers of this watch can enjoy a clear view of the movement through the see-through case back. 

Calibre 9R65:

Grand Seiko 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.

Calibre 9R65 is currently the most standard of the 9R Spring Drive movements, and is used in many Grand Seiko models.

Winding mechanism
Automatic with manual winding

Accuracy
+1 second per day

Power reserve
Approximately 72 hours

Number of jewels
30 jewels

Features
- Power reserve indicator
- Date display