Side by side

Sternglas Naos Pro GMT AutomatikvsZelos Spearfish 3

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
Spearfish 3
ZelosSpearfish 3
MSRP $749

At a glance

12 of 29 specs differ
Diameter
Naos Pro GMT Automatik38mm
Spearfish 340mm
Power Reserve
Naos Pro GMT Automatik42h
Spearfish 340h
Water Resistance
Naos Pro GMT Automatik50m
Spearfish 3200m
MSRP
Naos Pro GMT Automatik$863
Spearfish 3$749

Full specifications

Case

6 specs
Category
GMT
Diver
Diameter
38mm
40mm
Thickness
11mm
11.5mm
Lug-to-Lug
42mm
40mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
50m
200m

Crystal & Dial

2 specs
Dial Color
Diver - Forged Carbon
Lume
Luminova Punkte
None

Movement

3 specs
Caliber
Miyota 9075
La Joux-Perret G100
Power Reserve
42h
40h
Jewels
25

Pricing

1 specs
MSRP
$863
$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.

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.

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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