Side by side

Hamilton Jazzmaster Gent QuartzvsSpinnaker Dumas Automatic

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

Jazzmaster Gent Quartz
HamiltonJazzmaster Gent Quartz
MSRP $745
Dumas Automatic
SpinnakerDumas Automatic
MSRP $239

At a glance

10 of 29 specs differ
Diameter
Jazzmaster Gent Quartz40mm
Dumas Automatic44mm
Power Reserve
Jazzmaster Gent Quartz40h
Dumas Automatic40h
Water Resistance
Jazzmaster Gent Quartz50m
Dumas Automatic300m
MSRP
Jazzmaster Gent Quartz$745
Dumas Automatic$239

Full specifications

Case

7 specs
Category
Dress
Diver
Diameter
40mm
44mm
Thickness
10.2mm
15mm
Lug-to-Lug
46mm
48mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
50m
300m

Movement

2 specs
Caliber
F06.111
SII NH35A
Type
Quartz
Automatic

Pricing

1 specs
MSRP
$745
$239

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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 Gent Quartz

Owners widely praise the Hamilton Jazzmaster Gent Quartz for its dressier, unique aesthetic, with specific admiration for the dark, iridescent dial and the machine-work on the minute markers. The 40mm size is considered suitable for smaller wrists, though lug-to-lug measurements are debated. Some owners find the open-heart dial busy and difficult to read due to silver lines resembling hands, and the skeleton version is also noted for excessive branding. The H-20-S movement in the skeleton model is thought to have a 42-hour power reserve. Overall, owners appreciate the Hamilton Jazzmaster Gent Quartz for its distinctive mid-century modern design and detailed finishing.

Spinnaker Dumas Automatic

Owners widely praise the Spinnaker Dumas Automatic for its attractive textured blue dial, applied indices, and well-finished case, noting its comfortable wearability due to a short lug-to-lug distance. Some owners flag the use of mineral crystal instead of sapphire and a bracelet with a learning curve and loose keeper. Overall, owners rate the Spinnaker Dumas Automatic highly for its aesthetics and case finishing at its price point.

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