Side by side

Hamilton American Classic RailRoad AutovsLongines PrimaLuna Moonphase

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

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.

Longines PrimaLuna Moonphase

The Longines PrimaLuna Moonphase features a fluid case design and a 72-hour power reserve from its automatic movement. Owners note its accuracy averages 1.3 seconds lost per day across six positions, and 3 to 4 seconds on the wrist, performing within COSC standards. Previously, moon phase models utilized quartz movements, a detail that may not appeal to mechanical watch enthusiasts. Overall, owners rate the Longines PrimaLuna Moonphase highly for its updated automatic movement and reliable timekeeping.

At a glance

16 of 29 specs differ
Diameter
American Classic RailRoad Auto32mm
PrimaLuna Moonphase34mm
Power Reserve
American Classic RailRoad Auto43h
PrimaLuna Moonphase72h
Water Resistance
American Classic RailRoad Auto50m
PrimaLuna Moonphase30m
MSRP
American Classic RailRoad Auto$1,295
PrimaLuna Moonphase$2,950

Full specifications

Case

7 specs
Category
Dress
Moonphase
Diameter
32mm
34mm
Thickness
11.3mm
11.6mm
Lug-to-Lug
0mm
41mm
Lug Width
16mm
8mm
Water Resistance
50m
30m
Caseback
Transparent case back with sapphire crystal

Crystal & Dial

4 specs
AR Coating
Both sides
Dial Color
Beige
Blue
Indices
Diamond indexes
Lume
None
Super-LumiNova

Movement

4 specs
Caliber
ETA 2681
Longines L899.5
Beat Rate
0 vph
25,200 vph
Power Reserve
43h
72h
Complications
None
Hours, minutes, seconds and date, Moon phase display at 6 o'clock

Pricing

1 specs
MSRP
$1,295
$2,950
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