Side by side

Fortis Flieger F-41 Werk 7vsZelos Spearfish GMT

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

Flieger F-41 Werk 7
FortisFlieger F-41 Werk 7
MSRP $4,510
Spearfish GMT
ZelosSpearfish GMT
MSRP $999

At a glance

10 of 29 specs differ
Diameter
Flieger F-41 Werk 741mm
Spearfish GMT40mm
Power Reserve
Flieger F-41 Werk 738h
Spearfish GMT40h
Water Resistance
Flieger F-41 Werk 7200m
Spearfish GMT200m
MSRP
Flieger F-41 Werk 7$4,510
Spearfish GMT$999

Full specifications

Case

5 specs
Category
Pilot
GMT
Diameter
41mm
40mm
Thickness
11.5mm
13mm
Lug-to-Lug
46mm
40mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

1 specs
Dial Color
Black
Frost

Movement

3 specs
Caliber
Werk 7 (Manufacture)
Sellita SW330-2
Power Reserve
38h
40h
Jewels
26
25

Pricing

1 specs
MSRP
$4,510
$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.

Fortis Flieger F-41 Werk 7

The Fortis Flieger is widely praised for its robust build quality, superb readability, and excellent fit and finish, with reviewers highlighting the utilitarian dial and Brixtrack markers. Some find the 39mm case wears large due to its 50mm lug-to-lug span, while others note the 41mm versions offer better proportions. The Werk 7 movement provides a 70-hour power reserve, though one review mentions the UW-30 movement in a 39mm model has a 38-hour power reserve. On balance, reviewers rate the Fortis Flieger highly for its practical design and solid construction 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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