Side by side

Hamilton American Classic RailRoad AutovsSternglas Naos Pro Automatik

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

American Classic RailRoad Auto
HamiltonAmerican Classic RailRoad Auto
MSRP $1,295
Naos Pro Automatik
SternglasNaos Pro Automatik
MSRP $755

At a glance

10 of 29 specs differ
Diameter
American Classic RailRoad Auto32mm
Naos Pro Automatik38mm
Power Reserve
American Classic RailRoad Auto43h
Naos Pro Automatik42h
Water Resistance
American Classic RailRoad Auto50m
Naos Pro Automatik50m
MSRP
American Classic RailRoad Auto$1,295
Naos Pro Automatik$755

Full specifications

Case

4 specs
Diameter
32mm
38mm
Thickness
11.3mm
9mm
Lug-to-Lug
46mm
42.4mm
Lug Width
16mm
20mm

Crystal & Dial

2 specs
Dial Color
Beige
Lume
None
Luminova Punkte

Movement

3 specs
Caliber
ETA 2681
Miyota 9015
Power Reserve
43h
42h
Jewels
25

Pricing

1 specs
MSRP
$1,295
$755

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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 American Classic RailRoad Auto

Owners widely praise the Hamilton American Classic RailRoad Auto as a versatile everyday watch, noting its stellar appearance on bracelet or strap and the desirable H-10 movement providing an 80-hour power reserve. The 40mm case, measuring 11.35mm thick with slightly turned-down lugs, contributes to a thinner perceived profile. It is offered for $430 shipped and includes a travel pouch.

Sternglas Naos Pro Automatik

The Sternglas Naos Pro Automatik is praised for its slim 9mm case and Bauhaus dial design, featuring clear hour markers and a framed date window. Owners note the upgraded Miyota 9015 movement with a 4Hz beat rate. Accuracy is reported as -10/+30 seconds per day, which is not ideal for precision enthusiasts. The five-link bracelet's lack of fitted end-links and the optional bracelet's chunkiness are flagged as areas lacking refinement. Overall, reviewers highlight the Sternglas Naos Pro Automatik's improved wearability and premium feel at its price point.

From video reviewers

The Bauhaus design is a strength. The value proposition is a weakness.

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