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GRAND SEIKO Evolution 9 Spring Drive "Lake Suwa" Bleu
GRAND SEIKO

Evolution 9 Spring Drive "Lake Suwa"

Reference — 3 variants
Bleu dial
SLGA021
Size
40mm
Movement
Automatic
Water res.
100m
Caliber
9RA2
Reserve
120 heures
~$11k
Description

A refined expression of Grand Seiko's craftsmanship. The Lake Suwa model captures the essence of nature with its textured dial and practical features, seamlessly blending elegance and functionality.

10h09 take

"Evolution 9 is the modern-design pick, built on Grand Seiko’s newer design philosophy without losing the Spring Drive identity."

Specifications
ref. SLGA021
Case
MaterialSteel
Diameter40mm
Water resistance100m
BezelSmooth
Case backFond vissé
DialBlue
Movement
TypeSpring Drive
Caliber9RA2
Power reserve120 heures
ComplicationsDate
Strap & Bracelet
MaterialMetal bracelet
BuckleDéployante
Author POV

This is the rare piece in the Evolution 9 line I've catalogued that carries a date window instead of a power-reserve display, which changes the dial-balance calculus entirely: a blue 'Lake Suwa' dial has to accommodate the aperture without breaking symmetry, on a 40mm titanium case with a titanium bracelet, Spring Drive movement, 100m water resistance. Titanium over steel here isn't just a weight story — it also shifts the dial's blue slightly cooler under most light, a material-and-colour interaction I track separately on my scoring sheet. On my functional-layout axis, date apertures earn points for daily usefulness but cost points for disrupting an otherwise symmetric dial — a trade-off this piece handles better than most.

All references
3 variants