Side by side

Spinnaker Dumas AutomaticvsZelos Spearfish GMT

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

Dumas Automatic
SpinnakerDumas Automatic
MSRP $239
Spearfish GMT
ZelosSpearfish GMT
MSRP $999

At a glance

9 of 29 specs differ
Diameter
Dumas Automatic44mm
Spearfish GMT40mm
Power Reserve
Dumas Automatic40h
Spearfish GMT40h
Water Resistance
Dumas Automatic300m
Spearfish GMT200m
MSRP
Dumas Automatic$239
Spearfish GMT$999

Full specifications

Case

6 specs
Category
Diver
GMT
Diameter
44mm
40mm
Thickness
15mm
13mm
Lug-to-Lug
48mm
40mm
Lug Width
22mm
20mm
Water Resistance
300m
200m

Crystal & Dial

1 specs
Dial Color
Blue
Frost

Movement

1 specs
Caliber
SII NH35A
Sellita SW330-2

Pricing

1 specs
MSRP
$239
$999

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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.

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.

Zelos Spearfish GMT

The Zelos Spearfish GMT is widely praised for its exceptional value, with reviewers highlighting its superb finishing, flawless machining, and a tool-less micro-adjustment clasp that exceeds its price point. It features a La Joux-Perret G100 movement with a 68-hour power reserve, achieving an average accuracy of +2.6 seconds per day, or a Miyota 9075 movement offering flier-style GMT functionality. The 40mm case and bidirectional 48-click ceramic bezel are well-executed, though one reviewer noted a minor compromise in the end link fit. Overall, owners and reviewers rate the Zelos Spearfish GMT highly for its impressive finishing and value proposition.

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