Side by side

Fortis Novonaut N-42vsLongines PrimaLuna

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
PrimaLuna
LonginesPrimaLuna
MSRP $2,950

At a glance

22 of 29 specs differ
Diameter
Novonaut N-4242mm
PrimaLuna34mm
Power Reserve
Novonaut N-4260h
PrimaLuna72h
Water Resistance
Novonaut N-42300m
PrimaLuna30m
MSRP
Novonaut N-42$5,230
PrimaLuna$2,950

Full specifications

Case

9 specs
Category
Chronograph
Dress
Diameter
42mm
34mm
Thickness
14.6mm
11.6mm
Lug-to-Lug
41mm
Lug Width
21mm
8mm
Material
Titanium / Stainless Steel
Stainless Steel
Finish
Brushed and polished
Water Resistance
300m
30m
Caseback
Solid
Transparent case back with sapphire crystal

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Both sides
Dial Color
Titanium Legacy
Blue
Indices
Applied
Diamond indexes
Lume
None
Super-LumiNova

Movement

7 specs
Caliber
Manufacture Caliber WERK 17
L899.5
Beat Rate
28,800 vph
25,200 vph
Power Reserve
60h
72h
Jewels
36
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, seconds and date, Moon phase display at 6 o'clock

Pricing

1 specs
MSRP
$5,230
$2,950

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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.

Longines PrimaLuna

Owners widely praise the Longines PrimaLuna for its stylish, understated design and comfortable 26.5mm and 34mm case sizes, with some preferring the quartz for its lower maintenance and others the automatic for its craftsmanship. The automatic movement, an L899.5 or Caliber L899, offers a 72-hour power reserve and exhibits consistent accuracy averaging a loss of 1.3 seconds per day in testing, though it runs 3-4 seconds slower on the wrist. The redesigned collection features a curvier case with contemporary lug integration and is available in steel or bi-metal. On balance, owners and reviewers appreciate the Longines PrimaLuna for its elegant styling and reliable automatic movement, though some find its brand prestige and design less compelling compared to certain luxury alternatives.

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