Side by side

Tuseno ShellbackvsZelos Spearfish GMT

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

Shellback
TusenoShellback
MSRP $840
Spearfish GMT
ZelosSpearfish GMT
MSRP $999
What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Tuseno Shellback

The build quality is cited as a significant strength. Availability is a weakness, with stock running low.

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.

At a glance

9 of 29 specs differ
Diameter
Shellback40mm
Spearfish GMT40mm
Power Reserve
Shellback
Spearfish GMT40h
Water Resistance
Shellback200m
Spearfish GMT200m
MSRP
Shellback$840
Spearfish GMT$999

Full specifications

Case

4 specs
Category
GMT
Thickness
11.9mm
13mm
Lug-to-Lug
47mm
40mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

2 specs
Dial Color
Yellow
Frost
Lume
Super-LumiNova
None

Movement

2 specs
Caliber
Sellita SW200-1
Sellita SW330-2
Power Reserve
40h

Pricing

1 specs
MSRP
$840
$999
Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Follow this matchup

Get a note when Tuseno Shellback vs Zelos Spearfish GMT gets more votes, a community discussion, or a price drop. No account needed.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.