Grand Seiko SLGA021 Lake Suwa Before Dawn
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Grand Seiko SLGA021 Lake Suwa Before Dawn

By cazalea · Jan 26, 2023 · 6 replies
cazalea
WPS member · Seiko forum
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Cazalea introduces the Grand Seiko SLGA021, a Spring Drive timepiece inspired by the serene pre-dawn waters of Lake Suwa. This post delves into the aesthetic and technical prowess of the SLGA021, highlighting its unique dial texture and the advanced Caliber 9RA2 movement. It offers a detailed look at how Grand Seiko draws inspiration from its natural surroundings to create watches of exceptional beauty and precision.

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A five-day Spring Drive watch inspired by Lake Suwa stirred by the breeze before dawn.





To the southeast of the Shinshu Watch Studio, where Spring Drive watches are made, one will find the gently lapping waters of Lake Suwa, a constant inspiration for Grand Seiko. 

The dial of the Spring Drive SLGA021, evokes the surface of this very body of water. When you look upon it, don't you see gentle waves wafting over the wind-swept lake in the pre-dawn stillness? And like a gentle wind on an otherwise tranquil body of water, the dark blue color manifests differently depending on the angle at which light catches it. 

Following the Evolution 9 Style, the 40mm stainless steel case has a lower profile and center of gravity, ensuring a comfortable fit on the wrist. Its faceted mid-case features a blend of Grand Seiko's Zaratsu polishing and hairline finishing, giving the whole watch a dynamic look and feel. This  level of finishing is accomplished by hand as it demands a high degree of skill. 

Powered by Caliber 9RA2, SLGA021 has a notable 120-hour (5-day) power reserve and an improved accuracy of ±0.5 seconds per day, or ±10 seconds per month. 9RA2 takes the power-reserve indicator off the dial and moves it to the case back side of the watch. The seconds hand glides across the SLGA021’s textured blue dial like flowing water, moving with the quiet, natural pace of time itself thanks to the Spring Drive movement just below the dial’s surface.



  

  

  



Specifications

Exterior
Exterior: Stainless steel
Case back: See-through & Screw case back
Glass Material: Dual-curved sapphire crystal
Glass Coating: Anti-reflective coating on inner surface
Water resistance: 10 bar
Magnetic resistance: 4,800 A/m

Case size:
Diameter 40.0mm 
Lug-to-lug 47.9mm 
Thickness 11.8mm
Band width: 22mm
Weight: 176 g

Movement
Caliber no.: 9RA2 
Movement Type: Spring Drive, automatic winding
Accuracy: ±10 seconds per month (±0.5 second per day)

Other details / Features:
Screw-down crown
Power reserve indicator
Price Approx $9,000 US


About the Seiko Ref. SLGA021

The Grand Seiko SLGA021, known as 'Lake Suwa Before Dawn,' is a notable addition to the brand's Evolution 9 Style collection. It embodies Grand Seiko's commitment to nature-inspired design, with its deep blue dial meticulously crafted to evoke the gentle ripples of Lake Suwa in the stillness before dawn. This model showcases the brand's distinctive aesthetic and technical philosophy within its contemporary lineup.

Powering the SLGA021 is the Spring Drive Caliber 9RA2, an automatic movement offering a substantial 120-hour (5-day) power reserve and an accuracy rating of ±0.5 seconds per day. The 40mm stainless steel case features a blend of Zaratsu polishing and hairline finishing, characteristic of Grand Seiko's meticulous hand-finishing techniques. The case design, with its lower profile and center of gravity, is engineered for enhanced wrist comfort.

This reference is significant for collectors interested in Grand Seiko's Evolution 9 design language and the advanced capabilities of its latest generation Spring Drive movements. The SLGA021 represents a fusion of traditional Japanese artistry and cutting-edge horological technology, making it a compelling piece for those appreciating precision, craftsmanship, and a unique narrative inspiration.

Specifications

Caliber
9RA2
Case
Stainless steel
Diameter
40.0mm
Dial
Dark blue, textured
Water Resist.
10 bar
Crystal
Dual-curved sapphire crystal with anti-reflective coating

Key Points from the Discussion

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The Discussion
FR
frnkvizr
Jan 26, 2023

What fascinates me is the small differences there are in the evolution 9 watches with a mechanical vs a spring drive calibre. The factories producing these are about 500km apart in Japan. Although at first they look identical, the cases are very very slightly different. Look at the transition between the bezel and the bracelet. Just 0,5mm or so difference there. And the crowns are different. And the indices of the mechanical evolution 9 watches have a square groove down the middle. But the sprin

CA
cazalea
Jan 26, 2023
Good observations!

The Grand Seiko website makes fascinating reading, especially for someone who hasn’t known the history of GS. And even for me, having been to those ateliers in both places.

CH
Chronometer (aka yacomino)
Jan 27, 2023
Great offering inspired by the limited edition they can out with initially with this series 6 except with the gold accent on the logo and second hand

RR
Rrpdc
Jan 30, 2023
Great looking release. I much prefer this than the LE with the gold accents.

BL
Bluecat 128
Feb 26, 2023
Accuracy?

Like a famous Missourian, (show me!). For ≅$10,000, prove it!

CA
cazalea
Feb 26, 2023
For a Spring Drive, I believe the accuracy is there - any other SD owners care to speak up?

WATCHTIME "Spring Drive accordingly achieves a far more accurate rate than a mechanical escapement. Seiko calculates the average deviation at 0.5 second per day and at most, 15 seconds per month. We measured a deviation of 0.1 second per day on the wrist. After half a month, our test watch had gained 2 seconds." WATCH CRUNCH "Having recently purchased a pre owned Grand Seiko GMT spring drive I was curious to the accuracy of this movement. It's stated to 1 second per day, although this is accurat

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