Side by side

Jack Mason CantonvsSternglas Naos Pro GMT Automatik

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

Canton
Jack MasonCanton
MSRP $1,399
Naos Pro GMT Automatik
SternglasNaos Pro GMT Automatik
MSRP $863

At a glance

11 of 29 specs differ
Diameter
Canton39mm
Naos Pro GMT Automatik38mm
Power Reserve
Canton68h
Naos Pro GMT Automatik42h
Water Resistance
Canton150m
Naos Pro GMT Automatik50m
MSRP
Canton$1,399
Naos Pro GMT Automatik$863

Full specifications

Case

5 specs
Category
GMT
Diameter
39mm
38mm
Thickness
10.8mm
11mm
Lug-to-Lug
46mm
42mm
Water Resistance
150m
50m

Crystal & Dial

2 specs
Dial Color
Black
Lume
None
Luminova Punkte

Movement

3 specs
Caliber
La Joux Perret G100
Miyota 9075
Power Reserve
68h
42h
Jewels
25

Pricing

1 specs
MSRP
$1,399
$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.

Jack Mason Canton

The Jack Mason Canton is praised for its high-quality finishing, sophisticated appearance, and robust build, with owners finding it stunning in person and noting its scratch-resistant coating holds up well. Reviewers highlight its slim 10.8mm profile, hard-coated 39mm steel case with brushed and polished finishes, and a sunray dial with applied markers featuring Super-LumiNova. The La Joux Perret G100 automatic movement is a point of appreciation for its 68-hour power reserve and accuracy reported between ±7 sec/day and losing about 5 seconds per day. Owners also commend its versatile, simple design, comfortable wearability, and the option of an upgraded bracelet, with some finding its overall build and movement comparable to more expensive timepieces. However, some find the polished center links unappealing and the design a bit boring, while others feel the case proportions are stubby with short lugs.

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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