Side by side

Hamilton Jazzmaster Seaview Auto ChronovsSpinnaker Bradner GMT

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

Jazzmaster Seaview Auto Chrono
HamiltonJazzmaster Seaview Auto Chrono
MSRP $2,045
Bradner GMT
SpinnakerBradner GMT
MSRP $299

At a glance

9 of 29 specs differ
Diameter
Jazzmaster Seaview Auto Chrono44mm
Bradner GMT42mm
Power Reserve
Jazzmaster Seaview Auto Chrono40h
Bradner GMT40h
Water Resistance
Jazzmaster Seaview Auto Chrono100m
Bradner GMT180m
MSRP
Jazzmaster Seaview Auto Chrono$2,045
Bradner GMT$299

Full specifications

Case

6 specs
Category
Chronograph
GMT
Diameter
44mm
42mm
Thickness
14.95mm
15mm
Lug-to-Lug
46mm
50mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
180m

Crystal & Dial

1 specs
Dial Color
Black
Brown

Movement

1 specs
Caliber
No caliber
Seiko NH34A

Pricing

1 specs
MSRP
$2,045
$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 Chrono

Owners report that after seven years of daily wear, the Hamilton Jazzmaster Seaview Auto Chrono began gaining approximately 15 seconds per day, requiring a service. Post-service, accuracy improved to +/- 4 seconds per day, and a case replacement was included in a $220 plus tax service cost. One owner finds the Hamilton Jazzmaster Seaview Auto Chrono attractive with its sapphire bezel, clean dial, and polished/brushed finishing. On balance, owners value the watch's aesthetics and finishing, though one owner considers its retail price too high for a quartz model.

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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