Side by side

NOMOS Glashütte Ahoi neomatik siren bluevsFortis Flieger F-43 Triple-GMT

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

Flieger F-43 Triple-GMT
FortisFlieger F-43 Triple-GMT
MSRP $4,840

At a glance

16 of 29 specs differ
Diameter
Ahoi neomatik siren blue36.3mm
Flieger F-43 Triple-GMT43mm
Power Reserve
Ahoi neomatik siren blue43 hoursh
Flieger F-43 Triple-GMT56h
Water Resistance
Ahoi neomatik siren blue200m
Flieger F-43 Triple-GMT200m
MSRP
Ahoi neomatik siren blue$4,540
Flieger F-43 Triple-GMT$4,840

Full specifications

Case

7 specs
Category
Tool
GMT
Diameter
36.3mm
43mm
Thickness
9.6mm
14mm
Lug-to-Lug
45.5mm
Lug Width
18mm
22mm
Finish
Brushed and polished
Caseback
Solid

Crystal & Dial

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

Movement

4 specs
Caliber
DUW 3001
Sellita SW330-2
Beat Rate
21,600 vph
28,800 vph
Power Reserve
43 hoursh
56h
Jewels
27
25

Pricing

1 specs
MSRP
$4,540
$4,840

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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-43 Triple-GMT

The Fortis Flieger F-43 Triple-GMT is widely praised for its stunning dial execution, COSC-certified Kenissi WERK 13 movement with a 70-hour power reserve, and legible Brixtrack luminous indices. Owners and reviewers highlight the surprisingly wearable 43mm titanium case and bracelet, noting its lightness and comfort despite the size, with one source specifically mentioning a quick-adjustable extension. The watch offers 200m water resistance and features a Synchroline indicator. However, some owners note the titanium scratches easily and the bracelet can be difficult to size. The watch is priced at €4,500. On balance, owners and reviewers rate the Fortis Flieger F-43 Triple-GMT highly for its purpose-focused pilot's watch design and innovative movement.

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