Hamilton American Classic Intra-Matic AutovsSternglas Naos Großdatum

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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 American Classic Intra-Matic Auto at true scale

American Classic Intra-Matic Auto

Sternglas Naos Großdatum at true scale

Naos Großdatum

Diameter

40mm

38mm

Lug-to-Lug

n/a

42mm

Thickness

10.9mm

10mm

lowest

Water Resistance

50m

50m

Power Reserve

80h

n/a

MSRP

$1,275

$323

lowest

Movement

Hamilton H-10

Seiko VJ76

Case

3 specs
Diameter
40mm
38mm
Thickness
10.95mm
10mm
Lug-to-Lug
n/a
42mm

Crystal & Dial

2 specs
Dial Color
White
n/a
Lume
None
Luminova Punkten

Movement

4 specs
Caliber
Hamilton H-10
Seiko VJ76
Type
Automatic
Quartz
Power Reserve
80h
n/a
Jewels
0
n/a

Pricing

1 specs
MSRP
$1,275
$323
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Reviews

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

Hamilton American Classic Intra-Matic Auto

Owners widely praise the Hamilton American Classic Intra-Matic Auto for its vintage charm, thinness, and perfect 40mm size, with some preferring its tachymeter and subdials over other configurations. One owner notes the rotor can be loud. On balance, owners rate the Hamilton American Classic Intra-Matic Auto highly for its vintage aesthetic and wearability at the price point.

From video reviewers

The vintage-inspired design with classic panda dial and dual-register chronograph layout captures authentic racing watch aesthetics from the mid-century era. The automatic chronograph movement delivers reliable timekeeping in a package that honors Hamilton's heritage without modern complications.

Sternglas Naos Großdatum

The Sternglas Naos Großdatum is praised for its Bauhaus aesthetic and value, with one reviewer noting the prominent big date complication adds dynamism to its stylish design. Owners are split on its wearability, with some finding the 38mm case too small and the strap poor quality, while others appreciate its Bauhaus design and affordability as an alternative to pricier options. One owner notes the printed-on face, small font, and hands can make it resemble a toy, and another expresses concern the large dial might wear big. The watch features a Seiko VJ76 quartz movement with an accuracy of -20/+20 seconds per month and 50m water resistance. On balance, owners and reviewers appreciate the Sternglas Naos Großdatum for its Bauhaus-inspired design and affordability, though opinions vary on its perceived quality and wearability.