Side by side

Bremont Altitude Perpetual Calendar GMTvsFortis Flieger F-41 Werk 7

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

Altitude Perpetual Calendar GMT
BremontAltitude Perpetual Calendar GMT
MSRP $38,450
Flieger F-41 Werk 7
FortisFlieger F-41 Werk 7
MSRP $4,510

At a glance

12 of 29 specs differ
Diameter
Altitude Perpetual Calendar GMT42mm
Flieger F-41 Werk 741mm
Power Reserve
Altitude Perpetual Calendar GMT40h
Flieger F-41 Werk 738h
Water Resistance
Altitude Perpetual Calendar GMT
Flieger F-41 Werk 7200m
MSRP
Altitude Perpetual Calendar GMT$38,450
Flieger F-41 Werk 7$4,510

Full specifications

Case

7 specs
Category
GMT
Pilot
Diameter
42mm
41mm
Thickness
12.65mm
11.5mm
Lug-to-Lug
46mm
Lug Width
22mm
20mm
Material
Titanium
Stainless Steel
Water Resistance
200m

Crystal & Dial

1 specs
Dial Color
Blue
Black

Movement

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

Pricing

1 specs
MSRP
$38,450
$4,510

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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.

Bremont Altitude Perpetual Calendar GMT

The Bremont Altitude Perpetual Calendar GMT is a highly exclusive piece, with one owner noting its $44,000 price point raises questions about its target audience and suggesting it may be a limited production showpiece. Reviewers highlight its refined Trip-Tick case, now featuring softer curves, a 42mm diameter, and a 12.23mm thickness in grade 2 titanium, though the oversized crowns are flagged as a potential drawback. Overall, owners and reviewers acknowledge the Bremont Altitude Perpetual Calendar GMT as a distinctive, albeit niche, high-complication offering with a notable case refinement.

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.

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