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cazalea
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After Twenty+ Years of Seiko Spring Drive

The creation of Spring Drive started as a concept in the 1970s to devise an ideal watch; to combine (a) the power derived from a mainspring with (b) electronic timekeeping technologies to deliver (c) a level of precision that no conventional mechanical watch could attain. 

After more than 20 years of development, the first generation of Spring Drive was born. It was branded Seiko, the movement was named 7R and the watch featured an integrated case and bracelet. Here's mine:

I sold the Seiko due to its rattly bracelet, and replaced it with the same vintage Credor version of the same watch which uses a strap:

After proving the Spring Drive in production, Seiko's next vision was to (d) create a version worthy of the name Grand Seiko. The result was the 9R movement, variants of which power all Grand Seiko Spring Drive watches today.  A less-expensive variant was created as well, the 5R series for regular Seiko watches.

Speaking of less expensive, I was surprised to learn today that Seiko (not Grand, but Presage, Prospex, etc.) has all these Spring Drive models available! I didn't know there was a Presage Spring Drive (who can possibly keep up with all Seiko models?)

MOVING UP TO GRAND SEIKO

In September 2004, Grand Seiko released the first watch to be powered by this movement, which featured automatic winding and 72 hours of power reserve. I'm happy to say that I was one of the first to see this Grand Seiko watch appear, was captivated by its appearance AND movement, and bought one of the first watches back in April of 2005.

However, like the earliest Spring Drive Seiko, I wasn't thrilled with one factor -- which in this case was the champagne dial. It seemed too plain. So I sold it, but replaced it with a Snowflake in 2006 

which still runs beautifully today, on a Seiko strap. 

I guess I should try it with the bracelet again, as my strap is getting a bit tired.



NOW THE NEW NEWS

The year 2024 marks the 20th anniversary of this achievement, and today, two new creations are born in celebration of this milestone. 

The first honors the original Spring Drive watch from 2004 by featuring the same case design and the celebrated ‘snowflake’ patterned dial that debuted the following year, in 2005. This dial’s beautiful texture and representation of Grand Seiko’s respect for nature won the hearts of watch fans worldwide. The new creation’s dial features a pink gradation that vividly captures the beauty of a sunrise against the snow-covered Hotaka mountain range in Nagano Prefecture, where all Grand Seiko Spring Drive watches are made. The case and bracelet are titanium, as was the original Snowflake.

The second creation is a new Sport Collection GMT, whose dark red dial takes inspiration from a vivid sunrise as it illuminates the steep landscape of the same Hotaka mountain range in summer. Somewhat surprisingly, the steel GMT is slightly less expensive despite one more hand, lots of lume, and a ceramic bezel.

Grand Seiko Heritage Collection

Caliber 9R 20th Anniversary Limited Edition: SBGA497

Spring Drive Caliber 9R65
Driving system: Automatic
Accuracy: ± 1 second per day (± 15 seconds per month)
Power reserve: 72 hours
Number of jewels: 30

Specifications
High-intensity titanium case and bracelet
Dual-curved sapphire crystal with anti-reflective coating on the inner surface
See-through screw case back
Water resistance: 10 bar
Magnetic resistance: 4,800 A/m
Diameter: 41.0mm, Thickness: 12.5mm
Three-fold clasp with push-button release
Recommended retail price in Europe: €6,800
Limited edition of 1,500