Side by side

Lum-Tec Solar MarinevsSternglas Naos Pro GMT Automatik

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

Solar Marine
Lum-TecSolar Marine
MSRP $463
Naos Pro GMT Automatik
SternglasNaos Pro GMT Automatik
MSRP $863

At a glance

12 of 29 specs differ
Diameter
Solar Marine39mm
Naos Pro GMT Automatik38mm
Power Reserve
Solar Marine40h
Naos Pro GMT Automatik42h
Water Resistance
Solar Marine300m
Naos Pro GMT Automatik50m
MSRP
Solar Marine$463
Naos Pro GMT Automatik$863

Full specifications

Case

6 specs
Category
Diver
GMT
Diameter
39mm
38mm
Thickness
10.7mm
11mm
Lug-to-Lug
43.5mm
42mm
Material
316L Stainless Steel (DLC coated)
Stainless Steel
Water Resistance
300m
50m

Crystal & Dial

2 specs
Dial Color
Steel
Lume
None
Luminova Punkte

Movement

3 specs
Caliber
Miyota 9075
Power Reserve
40h
42h
Jewels
25

Pricing

1 specs
MSRP
$463
$863

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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.

Lum-Tec Solar Marine

Lum-Tec Solar Marine owners praise its all-black diver design, excellent lume, and rugged, tank-like build. One owner finds it a perfect fit for a 7-inch wrist and the most frequently worn watch despite its smaller size. However, one owner cautions that the PVD coating will wear and chip within a year, impacting its appearance, and another finds the price high for a solar quartz watch with added lume. On balance, owners rate the Lum-Tec Solar Marine highly for its robust design and excellent lume, despite concerns about PVD durability and value proposition.

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.

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