Side by side

Hamilton American Classic RailRoad AutovsNOMOS Glashütte Tetra 27 duo

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
Tetra 27 duo
NOMOS GlashütteTetra 27 duo
MSRP $2,090

At a glance

16 of 29 specs differ
Diameter
American Classic RailRoad Auto32mm
Tetra 27 duo27.5mm
Power Reserve
American Classic RailRoad Auto43h
Tetra 27 duo53 hoursh
Water Resistance
American Classic RailRoad Auto50m
Tetra 27 duo50m
MSRP
American Classic RailRoad Auto$1,295
Tetra 27 duo$2,090

Full specifications

Case

6 specs
Diameter
32mm
27.5mm
Thickness
11.3mm
6.1mm
Lug-to-Lug
46mm
38.5mm
Lug Width
16mm
18mm
Finish
Brushed and polished
Caseback
Solid

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Beige
White
Indices
Applied

Movement

5 specs
Caliber
ETA 2681
DUW 4001
Type
Automatic
Manual
Beat Rate
28,800 vph
21,600 vph
Power Reserve
43h
53 hoursh
Jewels
25
17

Pricing

1 specs
MSRP
$1,295
$2,090

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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.

NOMOS Glashütte Tetra 27 duo

Owners widely praise the NOMOS Glashütte Tetra 27 duo for its ideal small and light wearing dimensions, beautiful dial that shifts with lighting, and gorgeous blued hands, with some finding its 27mm size perfect for vintage preferences. The watch is noted for its precise, Art Deco-inspired design and good finishing. However, some owners and reviewers consider the 27.5mm size too small, labeling it a women's watch, though others find it unisex and note its square shape can make it wear larger. One owner flags the buckle as disappointingly generic and the grey suede strap as prone to getting dirty. Overall, owners and reviewers highly regard the NOMOS Glashütte Tetra 27 duo for its elegant design and comfortable wearability at its price point.

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