Side by side

Fortis Marinemaster M-40vsSeiko Coutura

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

Marinemaster M-40
FortisMarinemaster M-40
MSRP $3,520
Coutura
SeikoCoutura
MSRP $625

At a glance

13 of 29 specs differ
Diameter
Marinemaster M-4040mm
Coutura45.3mm
Power Reserve
Marinemaster M-4038h
Coutura40h
Water Resistance
Marinemaster M-40300m
Coutura100m
MSRP
Marinemaster M-40$3,520
Coutura$625

Full specifications

Case

6 specs
Category
Diver
GMT
Diameter
40mm
45.3mm
Thickness
13mm
11.5mm
Lug-to-Lug
46mm
Lug Width
21mm
12mm
Water Resistance
300m
100m

Crystal & Dial

2 specs
Dial Color
Orange
Black
Lume
None
LumiBrite on hands and index(es)

Movement

4 specs
Caliber
Sellita SW220-1
8B92
Type
Automatic
Quartz
Power Reserve
38h
40h
Jewels
26
10

Pricing

1 specs
MSRP
$3,520
$625

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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 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.

Seiko Coutura

Owners widely report the Seiko Coutura's metal treatments are very wear-resistant, with one owner noting minimal scratching after six years. Reviewers and owners appreciate its solar-powered movement, perpetual calendar, and radio sync features, with some finding its unique, futuristic styling captivating and a great value, while others describe the dial as too busy or gaudy. Some owners find the watch large and complicated to set initially, and one owner experienced issues with the solar power reserve requiring constant light exposure. On balance, owners and reviewers rate the Seiko Coutura well for its durable construction and practical solar and perpetual calendar features, despite polarizing design opinions.

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