Side by side

Grand Seiko SLGB023vsZelos Nova 37

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

SLGB023
Grand SeikoSLGB023
MSRP $12,400
Nova 37
ZelosNova 37
MSRP $899

At a glance

14 of 29 specs differ
Diameter
SLGB02340.8mm
Nova 3737mm
Power Reserve
SLGB02372h
Nova 3740h
Water Resistance
SLGB023300m
Nova 3750m
MSRP
SLGB023$12,400
Nova 37$899

Full specifications

Case

7 specs
Category
Diver
Dress
Diameter
40.8mm
37mm
Thickness
12.9mm
7mm
Lug-to-Lug
48.5mm
37mm
Lug Width
21mm
20mm
Material
Titanium
316L Stainless Steel
Water Resistance
300m
50m

Crystal & Dial

3 specs
Crystal
Sapphire
Domed Sapphire
AR Coating
Yes
Inner
Dial Color
Black
Salmon

Movement

3 specs
Caliber
9RB1
ETA 7001
Type
Spring Drive
Manual
Power Reserve
72h
40h

Pricing

1 specs
MSRP
$12,400
$899

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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 SLGB023

Owners and reviewers widely praise the Grand Seiko SLGB023 for its comfortable 40.8mm titanium case and the smooth winding feel of its Spring Drive 9RB1 movement. The dial's gradient blue "ushio" motif is a highlight, though some reviewers note the bezel's fully lumed scale as a missed opportunity. Enthusiasts are divided on the power reserve indicator's placement and the design of the hour and minute hands. Overall, owners and reviewers rate the Grand Seiko SLGB023 highly for its comfortable titanium case and the refined Spring Drive movement.

Zelos Nova 37

Owners widely praise the Zelos Nova 37's spectacular 37mm dimensions and extremely light, thin wearability. The meteorite dial is frequently highlighted as a captivating feature, though some reviewers suggest simpler indices would improve legibility over the Arabic numerals. The watch is considered a considerable value at $1,999. On balance, owners and reviewers rate the Zelos Nova 37 highly for its excellent dimensions and dial execution at the price.

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