Side by side

Citizen Series 8 870vsFortis Stratoliner S-41

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

Series 8 870
CitizenSeries 8 870
MSRP $1,595
Stratoliner S-41
FortisStratoliner S-41
MSRP $5,450

At a glance

12 of 29 specs differ
Diameter
Series 8 87040.8mm
Stratoliner S-4141mm
Power Reserve
Series 8 87050h
Stratoliner S-4160h
Water Resistance
Series 8 870100m
Stratoliner S-41200m
MSRP
Series 8 870$1,595
Stratoliner S-41$5,450

Full specifications

Case

6 specs
Category
Dress
Chronograph
Diameter
40.8mm
41mm
Thickness
12mm
14mm
Lug-to-Lug
46mm
Lug Width
11mm
21mm
Water Resistance
100m
200m

Crystal & Dial

2 specs
AR Coating
Underside
Inner
Dial Color
Grey
White

Movement

3 specs
Caliber
0950
Manufacture Caliber WERK 17
Power Reserve
50h
60h
Jewels
25
36

Pricing

1 specs
MSRP
$1,595
$5,450

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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 8 870

The Citizen Series 8 870 is praised for its sharp 40mm steel case with unique bezel construction and a glossy dial featuring finely brushed and polished applied hour markers. It is powered by the in-house caliber 0950 automatic movement, which operates at 4Hz and offers a 50-hour power reserve with enhanced magnetic resistance. The limited edition features a black Duratect DLC coated case, a carbon fiber dial, and is regulated to -5/+10 seconds per day. On balance, reviewers highlight the Series 8 870's distinctive case finishing and the robust in-house movement as key strengths.

Fortis Stratoliner S-41

Owners widely praise the Fortis Stratoliner S-41 for its purpose-built design and outstanding details, particularly its space blue lume and bright orange date on the dial. Reviewers note the WERK 17 movement offers a 60-hour power reserve. However, the Fortis Stratoliner S-41's 41mm case thickness and lug-to-lug distance lead some to perceive it as wearing large, and the dial's small text and flat design are flagged as potential drawbacks. Overall, owners and reviewers highlight the Fortis Stratoliner S-41's unique design and innovative movement as its primary strengths.

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