Side by side

Citizen World Chronograph A-TvsFortis Marinemaster M-40

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

World Chronograph A-T
CitizenWorld Chronograph A-T
MSRP $581
Marinemaster M-40
FortisMarinemaster M-40
MSRP $3,520

At a glance

13 of 29 specs differ
Diameter
World Chronograph A-T43mm
Marinemaster M-4040mm
Power Reserve
World Chronograph A-T40h
Marinemaster M-4038h
Water Resistance
World Chronograph A-T200m
Marinemaster M-40300m
MSRP
World Chronograph A-T$581
Marinemaster M-40$3,520

Full specifications

Case

6 specs
Category
Pilot
Diver
Diameter
43mm
40mm
Thickness
12mm
13mm
Lug-to-Lug
46mm
Lug Width
23mm
21mm
Water Resistance
200m
300m

Crystal & Dial

2 specs
AR Coating
Underside
Inner
Dial Color
Blue
Orange

Movement

4 specs
Caliber
H800
Sellita SW220-1
Type
Solar
Automatic
Power Reserve
40h
38h
Jewels
25
26

Pricing

1 specs
MSRP
$581
$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 World Chronograph A-T

Owners widely praise the Citizen World Chronograph A-T for its perpetual accuracy via radio-controlled atomic timekeeping and Eco-Drive solar charging, eliminating the need to set the time or change batteries. Reviewers and owners highlight its advanced technology, chronograph styling, and user-friendly crown-actuated time zone changes. Specific praise is given to its water resistance, sapphire crystal, and value for money, with some appreciating subtle blue accents and others the bold Blue Angels colorway. However, the internal slide rule bezel is considered difficult to operate, the dial can suffer from glare and poor lume, and the blue bezel plating may scratch easily. Some owners note the 43mm size and 145g weight are substantial, and the stock strap can be too short for larger wrists. One owner reported indicator hands misaligning but resolved it with recalibration.

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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