Side by side

Hamilton Jazzmaster Slim AutovsSpinnaker Bradner 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
Bradner GMT
SpinnakerBradner GMT
MSRP $299

At a glance

10 of 29 specs differ
Diameter
Jazzmaster Slim Auto40mm
Bradner GMT42mm
Power Reserve
Jazzmaster Slim Auto50h
Bradner GMT40h
Water Resistance
Jazzmaster Slim Auto30m
Bradner GMT180m
MSRP
Jazzmaster Slim Auto$825
Bradner GMT$299

Full specifications

Case

6 specs
Category
Dress
GMT
Diameter
40mm
42mm
Thickness
8.35mm
15mm
Lug-to-Lug
46mm
50mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
30m
180m

Crystal & Dial

1 specs
Dial Color
Black
Brown

Movement

2 specs
Caliber
No caliber
Seiko NH34A
Power Reserve
50h
40h

Pricing

1 specs
MSRP
$825
$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 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.

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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