Side by side

Hamilton American Classic Boulton QuartzvsZelos Spearfish GMT

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

American Classic Boulton Quartz
HamiltonAmerican Classic Boulton Quartz
MSRP $845
Spearfish GMT
ZelosSpearfish GMT
MSRP $999

At a glance

12 of 29 specs differ
Diameter
American Classic Boulton Quartz27mm
Spearfish GMT40mm
Power Reserve
American Classic Boulton Quartz40h
Spearfish GMT40h
Water Resistance
American Classic Boulton Quartz30m
Spearfish GMT200m
MSRP
American Classic Boulton Quartz$845
Spearfish GMT$999

Full specifications

Case

7 specs
Category
Dress
GMT
Diameter
27mm
40mm
Thickness
7.8mm
13mm
Lug-to-Lug
46mm
40mm
Lug Width
18mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
30m
200m

Crystal & Dial

2 specs
Crystal
Mineral
Sapphire
Dial Color
White
Frost

Movement

2 specs
Caliber
980.163
Sellita SW330-2
Type
Quartz
Automatic

Pricing

1 specs
MSRP
$845
$999

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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 Quartz

Owners praise the Hamilton American Classic Boulton Quartz for its classy, formal aesthetic, historical inspiration, and Art Deco design, noting its sinuous case hugs the wrist and contributes to a premium feel. Some find its small and thin size perfect, with one owner highlighting the 27mm x 32mm dimensions. The blue OEM strap was considered low quality, prompting an immediate swap. The retail price of $695 is considered worthwhile for the design and reliable movement by some, while others find it expensive for a quartz watch. Overall, owners rate the Hamilton American Classic Boulton Quartz highly for its heritage styling and elegant design at its price point.

Zelos Spearfish GMT

The Zelos Spearfish GMT is widely praised for its exceptional value, with reviewers highlighting its superb finishing, flawless machining, and a tool-less micro-adjustment clasp that exceeds its price point. It features a La Joux-Perret G100 movement with a 68-hour power reserve, achieving an average accuracy of +2.6 seconds per day, or a Miyota 9075 movement offering flier-style GMT functionality. The 40mm case and bidirectional 48-click ceramic bezel are well-executed, though one reviewer noted a minor compromise in the end link fit. Overall, owners and reviewers rate the Zelos Spearfish GMT highly for its impressive finishing and value proposition.

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