Side by side

Hamilton Jazzmaster Performer Auto chronovsSternglas Naos Pro GMT Automatik

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

Jazzmaster Performer Auto chrono
HamiltonJazzmaster Performer Auto chrono
MSRP $2,645
Naos Pro GMT Automatik
SternglasNaos Pro GMT Automatik
MSRP $863

At a glance

12 of 29 specs differ
Diameter
Jazzmaster Performer Auto chrono42mm
Naos Pro GMT Automatik38mm
Power Reserve
Jazzmaster Performer Auto chrono60h
Naos Pro GMT Automatik42h
Water Resistance
Jazzmaster Performer Auto chrono100m
Naos Pro GMT Automatik50m
MSRP
Jazzmaster Performer Auto chrono$2,645
Naos Pro GMT Automatik$863

Full specifications

Case

6 specs
Category
Chronograph
GMT
Diameter
42mm
38mm
Thickness
15.22mm
11mm
Lug-to-Lug
50mm
42mm
Lug Width
22mm
20mm
Water Resistance
100m
50m

Crystal & Dial

2 specs
Dial Color
White
Lume
None
Luminova Punkte

Movement

3 specs
Caliber
H-31
Miyota 9075
Power Reserve
60h
42h
Jewels
25

Pricing

1 specs
MSRP
$2,645
$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.

Hamilton Jazzmaster Performer Auto chrono

The Hamilton Jazzmaster Performer Auto chrono is praised as a good entry-level Swiss watch with desirable features and a reputable brand name, offering a sporty take on the Jazzmaster line with a 42mm case and a three-register layout. Owners note its 60-hour power reserve from the H-31 movement and find it a durable, stylish choice for daily wear. Some community members consider it a "sleeper model" with a stealthily beautiful design. However, some reviewers question its design originality, seeing similarities to other chronographs, and one commenter dislikes its 43mm case and long lug-to-lug measurement. The strap is described as stiff out of the box and on the shorter side. One owner questioned if the bezel was functional, and another felt it might be small and pricey for its specifications. Overall, owners and reviewers rate the Hamilton Jazzmaster Performer Auto chrono well for its value as an entry-level Swiss chronograph with desirable features and a reputable brand name.

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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