Side by side

Hamilton American Classic Boulton MechanicalvsSpinnaker Dumas 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
Dumas GMT
SpinnakerDumas GMT
MSRP $399

At a glance

11 of 29 specs differ
Diameter
American Classic Boulton Mechanical34mm
Dumas GMT44mm
Power Reserve
American Classic Boulton Mechanical80h
Dumas GMT40h
Water Resistance
American Classic Boulton Mechanical50m
Dumas GMT300m
MSRP
American Classic Boulton Mechanical$1,075
Dumas GMT$399

Full specifications

Case

6 specs
Category
Dress
GMT
Diameter
34mm
44mm
Thickness
11.2mm
15mm
Lug-to-Lug
46mm
48mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
50m
300m

Crystal & Dial

1 specs
Dial Color
White
Blue

Movement

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

Pricing

1 specs
MSRP
$1,075
$399

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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 Dumas GMT

Owners praise the Spinnaker Dumas GMT's satisfying lume, including on the crown, and good finishing, with one owner finding it wears well on a 17cm wrist. The watch features a Seiko NH34A GMT movement and a blue gradient dial. Reviewers note its 44mm diameter and 209g weight on the bracelet make it unsuitable for smaller wrists.

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