Which is cheaper, the Fortis Novonaut N-42 or the Grand Seiko STGF359?

At MSRP the Grand Seiko STGF359 is the cheaper of the two at $2,600, against $5,230 for the Fortis Novonaut N-42 — a $2,630 gap before any retailer discounting.

Which is bigger, the Fortis Novonaut N-42 or the Grand Seiko STGF359?

The Fortis Novonaut N-42 wears larger at 42mm versus 28.9mm for the Grand Seiko STGF359 — a 13.1mm difference across the dial.

Which has better water resistance, the Fortis Novonaut N-42 or the Grand Seiko STGF359?

The Fortis Novonaut N-42 is rated to 300m versus 100m for the Grand Seiko STGF359.

Which has a longer power reserve, the Fortis Novonaut N-42 or the Grand Seiko STGF359?

The Fortis Novonaut N-42 carries a 60-hour power reserve against 40 hours on the Grand Seiko STGF359.

What movement does the Fortis Novonaut N-42 run compared to the Grand Seiko STGF359?

The Fortis Novonaut N-42 runs a automatic caliber (Manufacture Caliber WERK 17), while the Grand Seiko STGF359 runs a quartz (4J52).

Side by side

Fortis Novonaut N-42vsGrand Seiko STGF359

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

Fortis Novonaut N-42

N-42

MSRP $5,230

Grand Seiko STGF359

stgf359g

MSRP $2,600

At a glance

14 of 29 specs differ

Diameter

Novonaut N-4242mm

STGF35928.9mm

Power Reserve

Novonaut N-4260h

STGF35940h

Water Resistance

Novonaut N-42300m

STGF359100m

MSRP

Novonaut N-42$5,230

STGF359$2,600

Full specifications

Case

7 specs

Crystal & Dial

2 specs

AR Coating

Inner

Yes

Dial Color

Titanium Legacy

Black

Movement

4 specs

Caliber

Manufacture Caliber WERK 17

4J52

Type

Automatic

Quartz

Power Reserve

60h

40h

Jewels

Pricing

1 specs

MSRP

$5,230

$2,600

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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.

Owners widely praise the Grand Seiko STGF359 for its elegant pairing with an engagement ring. Some owners find the 29mm case size too small for a man's wrist, while others suggest it can be worn by men with smaller wrists, recommending an in-person try-on. One owner notes potential date wheel misalignment requiring servicing. The bracelet has a maximum perimeter of 185mm, with extra links available. On balance, owners value the Grand Seiko STGF359 for its elegant aesthetic, though its small size is a point of consideration.

From video reviewers

The Grand Seiko STGF359 features a 9F quartz movement with exceptional accuracy, deviating by only +/−10 seconds per year. A drawback of the watch is its 40mm case size, which may be a concern for those with smaller wrists. Reviewers disagree on the type of movement, with one praising the 9F quartz and the other highlighting the spring drive movement.

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