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 $450

At a glance

12 of 29 specs differ
Diameter
Marinemaster M-4040mm
Coutura33.7mm
Power Reserve
Marinemaster M-4038h
Coutura40h
Water Resistance
Marinemaster M-40300m
Coutura100m
MSRP
Marinemaster M-40$3,520
Coutura$450

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
40mm
33.7mm
Thickness
13mm
8.4mm
Lug-to-Lug
40.3mm
Lug Width
21mm
16mm
Water Resistance
300m
100m

Crystal & Dial

2 specs
Dial Color
Orange
Black
Lume
None
LumiBrite on Hands

Movement

3 specs
Caliber
Sellita SW220-1
6N42
Power Reserve
38h
40h
Jewels
26
25

Pricing

1 specs
MSRP
$3,520
$450

Follow this matchup

Get a note when Fortis Marinemaster M-40 vs Seiko Coutura gets more votes, a community discussion, or a price drop. No account needed.

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 praise the Seiko Coutura for its wear-resistant metal treatments, with one reporting minimal scratching after six years. Its solar and perpetual calendar features are noted for reliability and low maintenance, and some find its aesthetic captivating with attractive gold indices and a contrasting black dial, making it a daily driver. However, opinions on styling are split; some find the dial too busy and the gold tone unconvincing, while others appreciate its unique, fun design. The proprietary bracelet is a common point of contention, with several owners expressing dislike. One owner reports poor solar power reserve requiring constant light exposure, and another found the watch sits too high and looks "horrendous" in person. Overall, owners value the Seiko Coutura for its solar and perpetual calendar complications and durable construction, despite polarizing styling and bracelet design.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.