Side by side

Grand Seiko SLGB001vsZelos Spearfish 3

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

SLGB001
Grand SeikoSLGB001
MSRP $39,000
Spearfish 3
ZelosSpearfish 3
MSRP $749

At a glance

12 of 29 specs differ
Diameter
SLGB00137mm
Spearfish 340mm
Power Reserve
SLGB00172h
Spearfish 340h
Water Resistance
SLGB001100m
Spearfish 3200m
MSRP
SLGB001$39,000
Spearfish 3$749

Full specifications

Case

6 specs
Category
Dress
Diver
Diameter
37mm
40mm
Thickness
11.4mm
11.5mm
Lug-to-Lug
44.3mm
40mm
Material
Platinum
316L Stainless Steel
Water Resistance
100m
200m

Crystal & Dial

2 specs
AR Coating
Yes
Inner
Dial Color
Black
Diver - Forged Carbon

Movement

3 specs
Caliber
9RB2
La Joux-Perret G100
Type
Spring Drive
Automatic
Power Reserve
72h
40h

Pricing

1 specs
MSRP
$39,000
$749

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Grand Seiko SLGB001

The Grand Seiko SLGB001 is a limited edition platinum watch in the Evolution 9 collection, featuring a 37mm case and the new Calibre 9RB2 Spring Drive U.F.A. movement, rated to ±20 seconds per year. It has an "Ice Forest" dial with a deep blue hue and a silver seconds hand, but notably lacks lume. A criticism is the absence of a micro-adjustment clasp on its leather strap. Overall, reviewers highlight the watch's advanced movement and distinctive dial as key features.

Zelos Spearfish 3

The Zelos Spearfish 3 is widely praised for its exceptional finishing, with razor-sharp polish and flawless brushed transitions that owners feel exceed its price point. The 40mm case is noted for its wearability, and the La Joux-Perret G100 movement offers a 68-hour power reserve, with reported accuracy averaging +2.6 seconds per day. Reviewers highlight the exceptionally smooth bi-directional bezel and a tool-less micro-adjustment clasp described as best-in-class among microbrands. The sapphire sandwich construction and lumed bezel are also cited as desirable features. Overall, owners and reviewers rate the Zelos Spearfish 3 highly for its outstanding finishing and value at its price point.

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