Side by side

Fortis Novonaut N-42vsGrand Seiko SLGA015

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
SLGA015
Grand SeikoSLGA015
MSRP $12,600

At a glance

14 of 29 specs differ
Diameter
Novonaut N-4242mm
SLGA01543.8mm
Power Reserve
Novonaut N-4260h
SLGA015120h
Water Resistance
Novonaut N-42300m
SLGA015200m
MSRP
Novonaut N-42$5,230
SLGA015$12,600

Full specifications

Case

7 specs
Category
Chronograph
Diver
Diameter
42mm
43.8mm
Thickness
14.6mm
13.8mm
Lug-to-Lug
51.5mm
Lug Width
21mm
23mm
Material
Titanium / Stainless Steel
Titanium
Water Resistance
300m
200m

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Dial Color
Titanium Legacy
Black

Movement

4 specs
Caliber
Manufacture Caliber WERK 17
9RA5
Type
Automatic
Spring Drive
Power Reserve
60h
120h
Jewels
36
25

Pricing

1 specs
MSRP
$5,230
$12,600

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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.

Grand Seiko SLGA015

The Grand Seiko SLGA015 is widely praised for its exceptional accuracy, with owners reporting performance far exceeding the stated 10 seconds per month. The Spring Drive movement's smooth sweep and 5-day power reserve are also noted strengths, as is the lighter titanium case construction. However, some owners find the bracelet extension non-intuitive, and one noted the clasp scratched easily. The watch features a nature-inspired, wave-like dial texture. Overall, owners rate the Grand Seiko SLGA015 highly for its impressive accuracy and quality construction.

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