Side by side

Hamilton American Classic Boulton MechanicalvsSpinnaker Bradner GMT

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

American Classic Boulton Mechanical
HamiltonAmerican Classic Boulton Mechanical
MSRP $1,075
Bradner GMT
SpinnakerBradner GMT
MSRP $299

At a glance

11 of 29 specs differ
Diameter
American Classic Boulton Mechanical34mm
Bradner GMT42mm
Power Reserve
American Classic Boulton Mechanical80h
Bradner GMT40h
Water Resistance
American Classic Boulton Mechanical50m
Bradner GMT180m
MSRP
American Classic Boulton Mechanical$1,075
Bradner GMT$299

Full specifications

Case

6 specs
Category
Dress
GMT
Diameter
34mm
42mm
Thickness
11.2mm
15mm
Lug-to-Lug
46mm
50mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
50m
180m

Crystal & Dial

1 specs
Dial Color
White
Brown

Movement

3 specs
Caliber
H-50
Seiko NH34A
Type
Manual
Automatic
Power Reserve
80h
40h

Pricing

1 specs
MSRP
$1,075
$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 Boulton Mechanical

Owners widely praise the Hamilton American Classic Boulton Mechanical for its smooth winding action and hacking seconds, with the absence of a date complication being a frequently noted positive. The watch is also lauded for its cool aesthetic and interesting company heritage. Overall, owners rate the Hamilton American Classic Boulton Mechanical highly for its user-friendly mechanical movement and distinctive style.

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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