Hamilton Jazzmaster Performer AutovsSternglas Naos Automatik

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Hamilton Jazzmaster Performer Auto at true scale

Jazzmaster Performer Auto

Sternglas Naos Automatik at true scale

Naos Automatik

Diameter

34mm

38mm

Lug-to-Lug

n/a

43mm

Thickness

n/a

12mm

Water Resistance

100m

highest

50m

Power Reserve

80h

highest

42h

MSRP

$1,245

$463

lowest

Movement

Hamilton H-10

Miyota 8215

Case

5 specs
Diameter
34mm
38mm
Thickness
n/a
12mm
Lug-to-Lug
n/a
43mm
Lug Width
18mm
20mm
Water Resistance
100m
50m

Crystal & Dial

1 specs
Dial Color
Blue
n/a

Movement

3 specs
Caliber
Hamilton H-10
Miyota 8215
Power Reserve
80h
42h
Jewels
0
n/a

Pricing

1 specs
MSRP
$1,245
$463
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Hamilton Jazzmaster Performer Auto

Owners widely praise the Hamilton Jazzmaster Performer Auto for its classic, beautiful dial and superb case finishing, with a mix of brushed and polished surfaces that offer excellent value. Reviewers note the flatter crystal reduces light reflection and perceived chunkiness, making the 34mm case sit well on smaller wrists with a reasonable lug-to-lug distance. Some owners find the 80-hour power reserve a strong point, while others consider the movement unremarkable. One owner suggests the 34mm size might be small, and another finds it a bit pricey for what it is. On balance, owners and reviewers rate the Hamilton Jazzmaster Performer Auto highly for its attractive design and finishing at the price point.

Sternglas Naos Automatik

The Sternglas Naos Automatik is praised for its stylish Bauhaus design and solid build quality for its price, featuring a sapphire crystal and elegant case. Owners find the 38mm model lighter than comparable watches and prefer its aesthetic over smartwatches. However, some dial text is too small and slim for easy readability, and the Milanese strap and clasp are considered lower quality, with the quick-change system not meeting advertised standards. On balance, owners and reviewers rate the Sternglas Naos Automatik highly for its Bauhaus design and build quality at its price point.

From video reviewers

The German minimalist and Bauhaus aesthetic is a key strength. Reviewers did not agree on any specific weaknesses. Reviewers disagreed on whether the watch offers superior value compared to the Junghans Max Bill.