Side by side

Citizen Series 8 870vsFortis Marinemaster M-40

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

Series 8 870
CitizenSeries 8 870
MSRP $1,095
Marinemaster M-40
FortisMarinemaster M-40
MSRP $3,520

At a glance

12 of 29 specs differ
Diameter
Series 8 87039mm
Marinemaster M-4040mm
Power Reserve
Series 8 87042h
Marinemaster M-4038h
Water Resistance
Series 8 870100m
Marinemaster M-40300m
MSRP
Series 8 870$1,095
Marinemaster M-40$3,520

Full specifications

Case

6 specs
Category
Sport
Diver
Diameter
39mm
40mm
Thickness
12mm
13mm
Lug-to-Lug
46mm
Lug Width
11mm
21mm
Water Resistance
100m
300m

Crystal & Dial

2 specs
AR Coating
Underside
Inner
Dial Color
Green
Orange

Movement

3 specs
Caliber
9051
Sellita SW220-1
Power Reserve
42h
38h
Jewels
25
26

Pricing

1 specs
MSRP
$1,095
$3,520

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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 compelling value proposition and modern Japanese design with a sporty edge. Reviewers note its 40mm steel case, glossy dial with applied markers, and the in-house Calibre 0950 automatic movement offering 50 hours of power reserve and enhanced magnetic resistance. The flat sapphire crystal is noted to collect fingerprints, and the solid caseback omits a view of the movement. The limited edition variant features a 40.8mm black DLC-coated case, a carbon fiber dial, and the 0950 movement regulated to -5/+10 seconds per day. Overall, the Citizen Series 8 870 is viewed as a strong offering for its blend of design and features.

Fortis Marinemaster M-40

Owners praise the Fortis Amber Orange for its gorgeous appearance and strong wrist presence, noting its crazy lume and 70-hour power reserve. The Doxa SUB 300T, described as having a superb, eccentric design with a highly legible dial and functional no-decompression bezel, uses an ETA 2824-2 movement. However, the SUB 300T's 42.5mm case wears large and its 14mm thickness is not ideal for dress shirts, though it boasts 1,200m water resistance. On balance, owners appreciate the Fortis Amber Orange for its striking aesthetics and impressive lume.

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