10h09.com
GRAND SEIKO Evolution 9 Spring Drive U.F.A. Ushio 300 Diver Bleu
GRAND SEIKO

Evolution 9 Spring Drive U.F.A. Ushio 300 Diver

Reference — 2 variants
Bleu dial
SLGB023
Size
40.8mm
Movement
Automatic
Water res.
300m
Caliber
Spring Drive 9RB2
Reserve
72 heures
~$14k
Description

A robust diving watch with a contemporary feel and precise Spring Drive movement. Engineered for underwater exploration without compromising on style.

Specifications
ref. SLGB023
Case
MaterialTitanium
Diameter40.8mm
Water resistance300m
BezelDiver ceramic
Case backFond vissé
DialBlue
Movement
TypeSpring Drive
CaliberSpring Drive 9RB2
Power reserve72 heures
ComplicationsPower reserve display
Strap & Bracelet
MaterialMetal bracelet
BuckleDéployante
Author POV

Spring Drive is the one Grand Seiko technology I rate above the Hi-Beat mechanicals for a genuine tool watch, because the glide-motion seconds hand and quartz-grade accuracy actually matter more than beat rate once you're timing something underwater. This U.F.A. Ushio hits 300m on a titanium case and titanium bracelet at 40.8mm — proper dive-watch water resistance, not the 100m compromise most 'diver-styled' pieces settle for. Blue dial, power reserve indicator on the back where it belongs, not competing with legibility on the front. On my axes this is the rare Grand Seiko that scores high on both craft and actual utility.

All references
2 variants