Side by side

Sternglas Naos Pro GMT AutomatikvsGrand Seiko SLGB023

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

Naos Pro GMT Automatik
SternglasNaos Pro GMT Automatik
MSRP $863
SLGB023
Grand SeikoSLGB023
MSRP $12,400

At a glance

15 of 29 specs differ
Diameter
Naos Pro GMT Automatik38mm
SLGB02340.8mm
Power Reserve
Naos Pro GMT Automatik42h
SLGB02372h
Water Resistance
Naos Pro GMT Automatik50m
SLGB023300m
MSRP
Naos Pro GMT Automatik$863
SLGB023$12,400

Full specifications

Case

7 specs
Category
GMT
Diver
Diameter
38mm
40.8mm
Thickness
11mm
12.9mm
Lug-to-Lug
42mm
48.5mm
Lug Width
20mm
21mm
Material
Stainless Steel
Titanium
Water Resistance
50m
300m

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
Black
Lume
Luminova Punkte
None

Movement

4 specs
Caliber
Miyota 9075
9RB1
Type
Automatic
Spring Drive
Power Reserve
42h
72h
Jewels
25

Pricing

1 specs
MSRP
$863
$12,400

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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.

Sternglas Naos Pro GMT Automatik

Owners report the Sternglas Naos can feel underwhelming with a cheap feel and hands resembling office printer output, with some finding it wears smaller than expected and looks like a toy, though others appreciate its understated design. Reviewers highlight the Argo Automatic variant as a compelling sub-€400 mechanical watch with a colorful dial and practical date wheel, suitable for new collectors, featuring a 38mm case and a Miyota 8215 movement. On balance, the consensus is that the Sternglas Naos offers a mixed ownership experience, with its value proposition and entry-level appeal being its strongest points for some.

From video reviewers

The Sternglas Naos Pro GMT Automatik features a clean Bauhaus design that sets it apart from other GMT watches. A notable weakness is the watch's bezel action, which is not as smooth as some reviewers would have liked. Reviewers disagree on the watch's case size, with one reviewer stating it's slightly larger than the original Naos Automatic, while another reviewer doesn't mention this aspect at all.

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.

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