Grand Seiko SBGA375G - Spring Drive - Blue and Silver

The modern look of the 44GS, powered by the Spring Drive movement

In 1967, more than 50 years ago, Grand Seiko laid the foundation of the famous Grand Seiko style with the 44GS watch. A style that perfectly mixes technique and art and has become the identity of the brand. A contemporary version of the look of the 44GS watch, the 44GS Contemporary Design, is central in the SBGA375. The natural flow of time is reflected by the hand, which - driven by the Spring Drive calibre - moves silently over the midnight blue dial. An iconic watch!

Caliber 9R65

"Automatic Spring drive 3-day"

Our company unveiled Spring Drive in 1999, but the lack of a sufficiently effective automatic winding mechanism and a power reserve of 72 hours prevents its acceptance in the Grand Seiko line. After another four years of development, the first Grand Seiko 9R Spring Drive was made.
The winding system and driving 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 improve winding efficiency.
Calibre 9R65 is currently the most standard of the 9R Spring Drive movements and is used in many Grand Seiko models.