Side by side

Sternglas Naos Pro GMT AutomatikvsFormex Reef 42 mm

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
Reef 42 mm
FormexReef 42 mm
MSRP $2,414

At a glance

12 of 29 specs differ
Diameter
Naos Pro GMT Automatik38mm
Reef 42 mm42mm
Power Reserve
Naos Pro GMT Automatik42h
Reef 42 mm56h
Water Resistance
Naos Pro GMT Automatik50m
Reef 42 mm300m
MSRP
Naos Pro GMT Automatik$863
Reef 42 mm$2,414

Full specifications

Case

6 specs
Category
GMT
Diver
Diameter
38mm
42mm
Thickness
11mm
11.4mm
Lug-to-Lug
42mm
47mm
Lug Width
20mm
22mm
Water Resistance
50m
300m

Crystal & Dial

2 specs
Dial Color
Black
Lume
Luminova Punkte
Super-LumiNova

Movement

3 specs
Caliber
Miyota 9075
Sellita SW300-1
Power Reserve
42h
56h
Jewels
25

Pricing

1 specs
MSRP
$863
$2,414

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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.

Formex Reef 42 mm

The Formex Reef 42 mm is widely praised for its comfortable bracelet featuring a micro-adjust clasp, COSC-certified Sellita movement, and excellent build quality. Owners appreciate the gradient dial's visual appeal and the overall wearability. Some owners note the seconds hand does not perfectly align with markers, and one owner found the lugs' taper hinders third-party strap fit. The bracelet's length and sporty design are noted as limiting versatility by some. On balance, owners and reviewers rate the Formex Reef 42 mm highly for its impressive wearability and value at the price point.

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