Side by side

Studio Underd0g Steffany BluevsZelos Spearfish GMT

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

Steffany Blue
Studio Underd0gSteffany Blue
MSRP $800
Spearfish GMT
ZelosSpearfish GMT
MSRP $999

At a glance

11 of 29 specs differ
Diameter
Steffany Blue39.5mm
Spearfish GMT40mm
Power Reserve
Steffany Blue40h
Spearfish GMT40h
Water Resistance
Steffany Blue
Spearfish GMT200m
MSRP
Steffany Blue$800
Spearfish GMT$999

Full specifications

Case

7 specs
Category
Casual
GMT
Diameter
39.5mm
40mm
Thickness
13mm
Lug-to-Lug
40mm
Lug Width
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m

Crystal & Dial

1 specs
Dial Color
Blue
Frost

Movement

2 specs
Caliber
Sellita SW330-2
Type
Manual
Automatic

Pricing

1 specs
MSRP
$800
$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.

Studio Underd0g Steffany Blue

Owners widely praise the Studio Underd0g Steffany Blue for its beautiful multilayer dial with a floating effect and vivid Super-LumiNova, with one owner finding it smaller and more beautiful than expected. The 37mm case wears nicely, though some find it slightly small for larger wrists. One owner notes the power reserve can fall short of the advertised 48 hours, sometimes lasting only about a day. Overall, owners rate the Studio Underd0g Steffany Blue highly for its striking dial and luminous display.

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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