Side by side

Fortis Novonaut N-42vsHamilton Jazzmaster Open Heart Auto

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
Jazzmaster Open Heart Auto
HamiltonJazzmaster Open Heart Auto
MSRP $2,695

At a glance

11 of 29 specs differ
Diameter
Novonaut N-4242mm
Jazzmaster Open Heart Auto36mm
Power Reserve
Novonaut N-4260h
Jazzmaster Open Heart Auto80h
Water Resistance
Novonaut N-42300m
Jazzmaster Open Heart Auto50m
MSRP
Novonaut N-42$5,230
Jazzmaster Open Heart Auto$2,695

Full specifications

Case

6 specs
Diameter
42mm
36mm
Thickness
14.6mm
10mm
Lug-to-Lug
46mm
Lug Width
21mm
18mm
Material
Titanium / Stainless Steel
Stainless Steel
Water Resistance
300m
50m

Crystal & Dial

1 specs
Dial Color
Titanium Legacy
Mother of pearl

Movement

3 specs
Caliber
Manufacture Caliber WERK 17
H-10
Power Reserve
60h
80h
Jewels
36
25

Pricing

1 specs
MSRP
$5,230
$2,695

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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.

Hamilton Jazzmaster Open Heart Auto

The Hamilton Jazzmaster Open Heart Auto is noted for its dressy yet versatile design, featuring striking gradient dials and intricately shaped cutouts that reveal the H-10 movement. It boasts an 80-hour power reserve and Nivachron hairspring. The watch is available in 36mm, 40mm, or 42mm stainless steel cases. On balance, the Hamilton Jazzmaster Open Heart Auto is appreciated for its visually engaging dial and movement display at its price point.

From video reviewers

The smoked dial's precision cutouts offer a captivating view of the automatic movement. Legibility is compromised by the open-heart design.

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