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 $6,500

At a glance

14 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 line300m
MSRP
Novonaut N-42$5,230
Prospex LX line$6,500

Full specifications

Case

6 specs
Category
Chronograph
Diver
Diameter
42mm
44.8mm
Thickness
14.6mm
15.7mm
Lug-to-Lug
50.9mm
Lug Width
21mm
22mm
Material
Titanium / Stainless Steel
Titanium

Crystal & Dial

3 specs
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Titanium Legacy
Black
Lume
None
LumiBrite on hands and index(es)

Movement

4 specs
Caliber
Manufacture Caliber WERK 17
5R65
Type
Automatic
Spring Drive
Power Reserve
60h
72h
Jewels
36
30

Pricing

1 specs
MSRP
$5,230
$6,500

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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 Seiko Prospex LX line's finishing is a step up from other models, with a case that sits well on the wrist, and some praise the green sunburst dial with blue anti-reflective sapphire crystal as phenomenal. However, owners note the high MSRP limited sales, with some desiring smaller cases and a reduced price, and others experienced quality control issues such as detached second hands and peeling DLC coating, leading to concerns about fragility. On balance, owners feel the Seiko Prospex LX line was discontinued due to pricing that alienated its target market, despite its attractive dial.

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