Side by side

NOMOS Glashütte Ahoi neomatik siren bluevsFortis Flieger F-41

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

Flieger F-41
FortisFlieger F-41
MSRP $2,530

At a glance

15 of 29 specs differ
Diameter
Ahoi neomatik siren blue36.3mm
Flieger F-4141mm
Power Reserve
Ahoi neomatik siren blue43 hoursh
Flieger F-4138h
Water Resistance
Ahoi neomatik siren blue200m
Flieger F-41200m
MSRP
Ahoi neomatik siren blue$4,540
Flieger F-41$2,530

Full specifications

Case

6 specs
Diameter
36.3mm
41mm
Thickness
9.6mm
11.5mm
Lug-to-Lug
45.5mm
46mm
Lug Width
18mm
20mm
Finish
Brushed and polished
Caseback
Solid

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Blue
Black
Indices
Applied

Movement

4 specs
Caliber
DUW 3001
Sellita SW200-1
Beat Rate
21,600 vph
28,800 vph
Power Reserve
43 hoursh
38h
Jewels
27
26

Pricing

1 specs
MSRP
$4,540
$2,530

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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.

NOMOS Glashütte Ahoi neomatik siren blue

Owners and reviewers widely praise the NOMOS Glashütte Ahoi neomatik siren blue for its vibrant siren blue dial, which pops in any light, and its Bauhaus design language with arresting simplicity. The subtle rose gold accents, neon orange details, and color-matched date window at 6 o'clock are noted as well-thought-out elements. The slim 9.8mm case and 200m water resistance are also highlighted. However, the lume on the hour markers is considered weak and fades quickly, and the watch is not a true ISO-certified diver due to the lack of a dive bezel. Some find the textile strap too casual for anything beyond sophisticated casual wear, and the straight lugs can create a large feel on the wrist. The DUW 3001 movement offers a 43-hour power reserve. On balance, owners and reviewers rate the NOMOS Glashütte Ahoi neomatik siren blue highly for its striking dial and refined, yet casual, aesthetic.

Fortis Flieger F-41

The Fortis Flieger F-41 is widely praised for its excellent machining and build quality for its price, featuring a traditional Flieger layout with modern flair, a sunburst dial with high-contrast orange accents, and a functional "Synchroline." Reviewers highlight its unique concave bezel with 24-click GMT functionality and a vivid color scheme that strikes a masterful balance. The watch offers 200 meters of water resistance and is powered by the UW-30 automatic movement. However, the UW-30 movement is noted for its modest 38-hour power reserve, and the 41mm case might be large for smaller wrists. Overall, reviewers rate the Fortis Flieger F-41 highly for its pared-back confidence and functional design at its price point.

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