Side by side

Undone Aero CommandovsZelos Spearfish GMT

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

What people say

Owners + reviewers, side by side

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

Undone Aero Commando

The Undone Aero Commando earns consistent praise for its vintage aviator aesthetic and finishing quality at its price point. Reviewers highlight the fashionable P.V.H. Weems-inspired design, the distinctive rotating bezel with 60-second scale and screw-down lock, the chamfered lugs with sharp finishing, and the super-domed polycarbonate crystal that delivers an attractive retro look—though polycarbonate scratches more easily than mineral glass. The comfortable Italian leather strap and well-proportioned case shape drew extended wear approval from one reviewer, who found no faults across weeks of use. The Cordura strap variant is noted as initially stiff, and the Lexan crystal can reflect light. Priced at $365 USD (€354), it pairs the Seiko NH35 automatic movement with 100m water resistance and quick-release spring bars. Overall, reviewers rate the Aero Commando highly for its thoughtful vintage design execution and case finishing quality relative to its cost.

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.

From video reviewers

The bezel action is a strong point. The bracelet quality is a weakness. Reviewers disagreed on the dial material, with some mentioning aventurine and others meteorite.

At a glance

11 of 29 specs differ
Diameter
Aero Commando40mm
Spearfish GMT40mm
Power Reserve
Aero Commando
Spearfish GMT
Water Resistance
Aero Commando100m
Spearfish GMT200m
MSRP
Aero Commando$365
Spearfish GMT$999

Full specifications

Case

6 specs
Category
GMT
Thickness
0mm
13mm
Lug-to-Lug
0mm
40mm
Lug Width
0mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
200m

Crystal & Dial

2 specs
Crystal
Sapphire
Dial Color
Frost

Movement

2 specs
Caliber
Seiko NH35
Sellita SW330-2
Power Reserve
0h

Pricing

1 specs
MSRP
$365
$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 Undone Aero Commando 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.