Formex Stratos UTCvsZelos Spearfish GMT
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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Stratos UTC

Spearfish GMT
Diameter
41mm
40mm
Lug-to-Lug
47mm
n/a
Thickness
11.8mm
lowest
13mm
Water Resistance
100m
200m
highest
Power Reserve
42h
n/a
MSRP
$4,663
$999
lowest
Movement
ETA 2892-A2
Sellita SW330-2
Case
5 specsCrystal & Dial
2 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners and reviewers widely praise the Formex Stratos UTC for its innovative flyer GMT complication operated by pushers and its slim 11.8mm case, which contributes to comfortable wearability. The intricate, hand-finished case construction and multi-layer dial are frequently highlighted as strengths, with some noting an "Hermes vibe" on leather. Accuracy is reported within a range of +/- 5 to +/- 7 seconds per day. However, some find the dial design busy with multiple fonts and the overall aesthetic too technical for certain occasions. The price point, around €4000 or $3990, is considered a step up for the brand but competitive for the features offered. Overall, owners and reviewers rate the Formex Stratos UTC highly for its user-friendly GMT functionality and excellent case finishing at its price point.
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.
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.
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