Side by side

Fortis Novonaut N-42vsSeiko Prospex LX line

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
Prospex LX line
SeikoProspex LX line
MSRP $5,500

At a glance

15 of 29 specs differ
Diameter
Novonaut N-4242mm
Prospex LX line44.8mm
Power Reserve
Novonaut N-4260h
Prospex LX line72h
Water Resistance
Novonaut N-42300m
Prospex LX line200m
MSRP
Novonaut N-42$5,230
Prospex LX line$5,500

Full specifications

Case

7 specs
Category
Chronograph
GMT
Diameter
42mm
44.8mm
Thickness
14.6mm
14.7mm
Lug-to-Lug
50.9mm
Lug Width
21mm
22mm
Material
Titanium / Stainless Steel
Titanium
Water Resistance
300m
200m

Crystal & Dial

3 specs
AR Coating
Inner
Super-clear coating
Dial Color
Titanium Legacy
Black
Lume
None
LumiBrite on hands and index(es)

Movement

4 specs
Caliber
Manufacture Caliber WERK 17
5R66
Type
Automatic
Spring Drive
Power Reserve
60h
72h
Jewels
36
30

Pricing

1 specs
MSRP
$5,230
$5,500

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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 Prospex LX line

Owners widely report the dial's blue-green sunburst is phenomenal, and the sapphire glass features blue AR coating. Some owners feel the high price limits discounts and sales, with one AD noting extremely low sales due to the cost. One owner reported DLC peeling off a two-week-old watch, and another noted quality control issues like bezel inserts and fallen second hands. On balance, owners consider the Seiko Prospex LX line a nicely built watch, though pricing led to poor sales and its discontinuation.

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