Side by side

Hamilton Jazzmaster Performer Auto chronovsSpinnaker Dumas GMT

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

Jazzmaster Performer Auto chrono
HamiltonJazzmaster Performer Auto chrono
MSRP $2,645
Dumas GMT
SpinnakerDumas GMT
MSRP $399

At a glance

10 of 29 specs differ
Diameter
Jazzmaster Performer Auto chrono42mm
Dumas GMT44mm
Power Reserve
Jazzmaster Performer Auto chrono60h
Dumas GMT40h
Water Resistance
Jazzmaster Performer Auto chrono100m
Dumas GMT300m
MSRP
Jazzmaster Performer Auto chrono$2,645
Dumas GMT$399

Full specifications

Case

6 specs
Category
Chronograph
GMT
Diameter
42mm
44mm
Thickness
15.22mm
15mm
Lug-to-Lug
46mm
48mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
300m

Crystal & Dial

1 specs
Dial Color
White
Blue

Movement

2 specs
Caliber
H-31
Seiko NH34A
Power Reserve
60h
40h

Pricing

1 specs
MSRP
$2,645
$399

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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 Performer Auto chrono

The Hamilton Jazzmaster Performer Auto chrono is praised as a good entry-level Swiss watch with desirable features and a reputable brand name, offering a sporty take on the Jazzmaster line with a 42mm case and a three-register layout. Owners note its 60-hour power reserve from the H-31 movement and find it a durable, stylish choice for daily wear. Some community members consider it a "sleeper model" with a stealthily beautiful design. However, some reviewers question its design originality, seeing similarities to other chronographs, and one commenter dislikes its 43mm case and long lug-to-lug measurement. The strap is described as stiff out of the box and on the shorter side. One owner questioned if the bezel was functional, and another felt it might be small and pricey for its specifications. Overall, owners and reviewers rate the Hamilton Jazzmaster Performer Auto chrono well for its value as an entry-level Swiss chronograph with desirable features and a reputable brand name.

Spinnaker Dumas GMT

Owners praise the Spinnaker Dumas GMT's satisfying lume, including on the crown, and good finishing, with one owner finding it wears well on a 17cm wrist. The watch features a Seiko NH34A GMT movement and a blue gradient dial. Reviewers note its 44mm diameter and 209g weight on the bracelet make it unsuitable for smaller wrists.

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