Side by side

Hamilton American Classic RailRoad Auto ChronovsSpinnaker Bradner GMT

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

American Classic RailRoad Auto Chrono
HamiltonAmerican Classic RailRoad Auto Chrono
MSRP $2,045
Bradner GMT
SpinnakerBradner GMT
MSRP $299

At a glance

10 of 29 specs differ
Diameter
American Classic RailRoad Auto Chrono44mm
Bradner GMT42mm
Power Reserve
American Classic RailRoad Auto Chrono60h
Bradner GMT40h
Water Resistance
American Classic RailRoad Auto Chrono50m
Bradner GMT180m
MSRP
American Classic RailRoad Auto Chrono$2,045
Bradner GMT$299

Full specifications

Case

6 specs
Category
Chronograph
GMT
Diameter
44mm
42mm
Thickness
15.3mm
15mm
Lug-to-Lug
46mm
50mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
50m
180m

Crystal & Dial

1 specs
Dial Color
Black
Brown

Movement

2 specs
Caliber
H-21
Seiko NH34A
Power Reserve
60h
40h

Pricing

1 specs
MSRP
$2,045
$299

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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 Chrono

Owners widely praise the Hamilton American Classic RailRoad Auto Chrono for its historical brand appeal and spectacular appearance, calling the ETA 7750 movement a "tank" and appreciating the date magnifier's integration. Some find its design a bit busy compared to other models. One owner notes an 80-hour power reserve from the H-10 movement and a 40mm case with turned-down lugs for a thinner appearance. Overall, owners rate the Hamilton American Classic RailRoad Auto Chrono highly for its historical brand appeal and robust movement at its price point.

Spinnaker Bradner GMT

The Spinnaker Bradner GMT is praised for its awesome lume and comfortable wearability, with one owner noting the rubber strap is very comfortable and the beads of rice bracelet fits well on smaller wrists. Some find its 15mm thickness and bold colorway may not appeal to everyone, and one owner views it as more of a casual GMT with tool-watch styling than a diver. Overall, owners rate the Spinnaker Bradner GMT highly for its value and comfortable wearability.

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