Side by side

Citizen Series 8 831vsFortis Novonaut N-42

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

Series 8 831
CitizenSeries 8 831
MSRP $1,095
Novonaut N-42
FortisNovonaut N-42
MSRP $5,230

At a glance

13 of 29 specs differ
Diameter
Series 8 83140mm
Novonaut N-4242mm
Power Reserve
Series 8 83142h
Novonaut N-4260h
Water Resistance
Series 8 831100m
Novonaut N-42300m
MSRP
Series 8 831$1,095
Novonaut N-42$5,230

Full specifications

Case

7 specs
Category
Sport
Chronograph
Diameter
40mm
42mm
Thickness
12mm
14.6mm
Lug-to-Lug
46mm
Lug Width
20mm
21mm
Material
Stainless Steel
Titanium / Stainless Steel
Water Resistance
100m
300m

Crystal & Dial

2 specs
AR Coating
Underside
Inner
Dial Color
Green
Titanium Legacy

Movement

3 specs
Caliber
9051
Manufacture Caliber WERK 17
Power Reserve
42h
60h
Jewels
25
36

Pricing

1 specs
MSRP
$1,095
$5,230

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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.

Citizen Series 8 831

Owners widely praise the Citizen Series 8 831 for its finishing, with one owner noting it exceeded expectations. Reviewers highlight the textured Ice Blue dial and the bracelet's play of light, contributing to a comfortable and luxurious feel on the wrist. The watch features a 40mm ion-plated stainless steel case, a sapphire crystal, and 100 meters of water resistance. It is powered by the in-house Miyota Caliber 9051 automatic movement, which has a 42-hour power reserve and an accuracy range of -10 to +20 seconds per day. On balance, owners and reviewers rate the Citizen Series 8 831 highly for its impressive finishing and dial design at its price point.

From video reviewers

The case finishing, with its contrasting brushed and polished surfaces, is a notable strength. The 40mm case size and comfortable fit are also consistently mentioned. Reviewers did not reach a consensus on any weaknesses.

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.

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