Side by side

Fortis Novonaut N-42vsSeiko 5KX

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
5KX
Seiko5KX
MSRP $350

At a glance

14 of 29 specs differ
Diameter
Novonaut N-4242mm
5KX42.5mm
Power Reserve
Novonaut N-4260h
5KX41h
Water Resistance
Novonaut N-42300m
5KX100m
MSRP
Novonaut N-42$5,230
5KX$350

Full specifications

Case

7 specs
Category
Chronograph
Diver
Diameter
42mm
42.5mm
Thickness
14.6mm
13.4mm
Lug-to-Lug
46mm
Lug Width
21mm
22mm
Material
Titanium / Stainless Steel
Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

3 specs
Crystal
Sapphire
Hardlex
Dial Color
Titanium Legacy
Black
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Manufacture Caliber WERK 17
4R36
Power Reserve
60h
41h
Jewels
36
24

Pricing

1 specs
MSRP
$5,230
$350

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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 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.

Seiko 5KX

Owners widely praise the Seiko 5 Sports SKX series for its strong lume and comfortable wearability, with many noting its compact feel due to a short lug-to-lug length. The NH36 movement's accuracy varies, with typical performance between +/-5 to 10 seconds per day, though some report better. A lack of screw-down crown and ISO certification are noted drawbacks for its water resistance. Some owners find the bracelet to be of cheaper construction with hollow links, and a few have reported quality control issues. The consensus is that the Seiko 5 Sports SKX series offers good value for its price, appealing to those who appreciate its tool-like nature and iconic lineage.

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