Side by side

Sternglas Naos Pro GMT AutomatikvsSeiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition

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

At a glance

13 of 29 specs differ
Diameter
Naos Pro GMT Automatik38mm
Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition40mm
Power Reserve
Naos Pro GMT Automatik42h
Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition72h
Water Resistance
Naos Pro GMT Automatik50m
Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition300m
MSRP
Naos Pro GMT Automatik$863
Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition$1,400

Full specifications

Case

5 specs
Category
GMT
Diver
Diameter
38mm
40mm
Thickness
11mm
13mm
Lug-to-Lug
42mm
46.4mm
Water Resistance
50m
300m

Crystal & Dial

4 specs
Crystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Black
Lume
Luminova Punkte
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Miyota 9075
6R55
Power Reserve
42h
72h
Jewels
24

Pricing

1 specs
MSRP
$863
$1,400

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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.

Seiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition

The Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition features a 40mm case, 300m water resistance, and a 72-hour power reserve from the Calibre 6R55 movement, distinguished by a grey bezel insert and a wave-patterned silvery-white dial. The clasp includes an improved diving suit extension. Owners note the MarineMaster case is comfortable and wearable. However, some owners criticize the 6R54 movement's accuracy, reporting deviations of +25/-15 seconds per day, and find the production number too large for a "limited" edition, deeming it too expensive. On balance, owners rate the Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition positively for its comfortable case and attractive dial, despite concerns regarding its price and movement accuracy.

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