Side by side

NOMOS Glashütte Ahoi neomatik siren bluevsFortis Novonaut N-42

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

Novonaut N-42
FortisNovonaut N-42
MSRP $5,230

At a glance

18 of 29 specs differ
Diameter
Ahoi neomatik siren blue36.3mm
Novonaut N-4242mm
Power Reserve
Ahoi neomatik siren blue43 hoursh
Novonaut N-4260h
Water Resistance
Ahoi neomatik siren blue200m
Novonaut N-42300m
MSRP
Ahoi neomatik siren blue$4,540
Novonaut N-42$5,230

Full specifications

Case

9 specs
Category
Tool
Chronograph
Diameter
36.3mm
42mm
Thickness
9.6mm
14.6mm
Lug-to-Lug
45.5mm
Lug Width
18mm
21mm
Material
Stainless Steel
Titanium / Stainless Steel
Finish
Brushed and polished
Water Resistance
200m
300m
Caseback
Solid

Crystal & Dial

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

Movement

4 specs
Caliber
DUW 3001
Manufacture Caliber WERK 17
Beat Rate
21,600 vph
28,800 vph
Power Reserve
43 hoursh
60h
Jewels
27
36

Pricing

1 specs
MSRP
$4,540
$5,230

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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 Novonaut N-42

Owners widely praise the Fortis B-42 Official Cosmonauts for its stunning fit and finish, excellent legibility, and a precise, grippy bezel, with one owner calling its bracelet the nicest they've ever owned. The Fortis Novonaut N-42 is described as a flawless beast with a WERK 17 column-wheel chronograph movement, featuring enhanced shock resistance and COSC adjustment, and is noted as a handsome tool watch with a beautiful dial and nice pusher action. However, the 42mm case of the B-42 wears larger than expected, and the Novonaut's 44mm case and chunky bracelet make it too large and heavy for many. The Fortis Titanium Legacy is a modern pilot's watch with a titanium case and bracelet, featuring a Kenissi WERK 13 movement with a 70-hour power reserve and three time zones. Overall, owners and reviewers highly regard the Fortis Titanium Legacy for its robust tool watch design and advanced movement technology, despite some concerns about case size and bracelet adjustability.

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