Side by side

Hamilton Jazzmaster Seaview AutovsSpinnaker Bradner GMT

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

Jazzmaster Seaview Auto
HamiltonJazzmaster Seaview Auto
MSRP $945
Bradner GMT
SpinnakerBradner GMT
MSRP $299

At a glance

11 of 29 specs differ
Diameter
Jazzmaster Seaview Auto37mm
Bradner GMT42mm
Power Reserve
Jazzmaster Seaview Auto42h
Bradner GMT40h
Water Resistance
Jazzmaster Seaview Auto100m
Bradner GMT180m
MSRP
Jazzmaster Seaview Auto$945
Bradner GMT$299

Full specifications

Case

7 specs
Category
Dress
GMT
Diameter
37mm
42mm
Thickness
11.3mm
15mm
Lug-to-Lug
46mm
50mm
Lug Width
18mm
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
180m

Crystal & Dial

1 specs
Dial Color
White
Brown

Movement

2 specs
Caliber
2824-2
Seiko NH34A
Power Reserve
42h
40h

Pricing

1 specs
MSRP
$945
$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 Seaview Auto

Owners widely praise the Hamilton Jazzmaster Seaview Auto for its attractive design and comfortable wearability when paired with aftermarket straps like sailcloth. Accuracy varies, with one owner reporting gains of 15 seconds per day after seven years of wear, which improved to +/- 4 seconds per day after servicing and case replacement. Another user noted finish issues after minimal wear, questioning the material quality. The Hamilton Jazzmaster Seaview Auto is available with a 45mm stainless steel case, sapphire crystal, 300m water resistance, and an ETA 2824-2 movement, with prices around $500. On balance, owners value the Hamilton Jazzmaster Seaview Auto for its aesthetic appeal and strap versatility, though material durability can be a concern for some.

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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