Side by side

Hamilton Jazzmaster Slim AutovsZelos Spearfish GMT

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

Jazzmaster Slim Auto
HamiltonJazzmaster Slim Auto
MSRP $825
Spearfish GMT
ZelosSpearfish GMT
MSRP $999

At a glance

10 of 29 specs differ
Diameter
Jazzmaster Slim Auto40mm
Spearfish GMT40mm
Power Reserve
Jazzmaster Slim Auto50h
Spearfish GMT40h
Water Resistance
Jazzmaster Slim Auto30m
Spearfish GMT200m
MSRP
Jazzmaster Slim Auto$825
Spearfish GMT$999

Full specifications

Case

6 specs
Category
Dress
GMT
Thickness
8.35mm
13mm
Lug-to-Lug
46mm
40mm
Lug Width
22mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
30m
200m

Crystal & Dial

1 specs
Dial Color
Black
Frost

Movement

2 specs
Caliber
No caliber
Sellita SW330-2
Power Reserve
50h
40h

Pricing

1 specs
MSRP
$825
$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 Jazzmaster Slim Auto

The Hamilton Jazzmaster Slim Auto is praised for its elegance, light weight, and impressive leather strap, offering a classy yet engaging aesthetic. Its thin 8mm profile, achieved partly by omitting a seconds hand and utilizing the ETA 2892 movement, contributes to its wearability. However, one owner notes the 44mm case size as being very large, and another finds it less appealing than vintage Hamilton models, though the black dial version is considered better looking. Overall, owners appreciate the Hamilton Jazzmaster Slim Auto for its slim profile and elegant design.

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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