Side by side

Sternglas Naos Pro GMT AutomatikvsSeiko 5KX

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
5KX
Seiko5KX
MSRP $350

At a glance

13 of 29 specs differ
Diameter
Naos Pro GMT Automatik38mm
5KX42.5mm
Power Reserve
Naos Pro GMT Automatik42h
5KX41h
Water Resistance
Naos Pro GMT Automatik50m
5KX100m
MSRP
Naos Pro GMT Automatik$863
5KX$350

Full specifications

Case

6 specs
Category
GMT
Diver
Diameter
38mm
42.5mm
Thickness
11mm
13.4mm
Lug-to-Lug
42mm
46mm
Lug Width
20mm
22mm
Water Resistance
50m
100m

Crystal & Dial

3 specs
Crystal
Sapphire
Hardlex
Dial Color
Black
Lume
Luminova Punkte
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Miyota 9075
4R36
Power Reserve
42h
41h
Jewels
24

Pricing

1 specs
MSRP
$863
$350

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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.

Seiko 5KX

Owners widely praise the Seiko 5 Sports SKX series for its strong lume and comfortable wearability, with many noting its compact feel due to a short lug-to-lug length. The NH36 movement's accuracy varies, with typical performance between +/-5 to 10 seconds per day, though some report better. A lack of screw-down crown and ISO certification are noted drawbacks for its water resistance. Some owners find the bracelet to be of cheaper construction with hollow links, and a few have reported quality control issues. The consensus is that the Seiko 5 Sports SKX series offers good value for its price, appealing to those who appreciate its tool-like nature and iconic lineage.

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