Side by side

Fortis Marinemaster M-40vsSeiko Essentials Quartz

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
Essentials Quartz
SeikoEssentials Quartz
MSRP $335

At a glance

13 of 29 specs differ
Diameter
Marinemaster M-4040mm
Essentials Quartz38.9mm
Power Reserve
Marinemaster M-4038h
Essentials Quartz40h
Water Resistance
Marinemaster M-40300m
Essentials Quartz100m
MSRP
Marinemaster M-40$3,520
Essentials Quartz$335

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
40mm
38.9mm
Thickness
13mm
8.5mm
Lug-to-Lug
44.5mm
Lug Width
21mm
20mm
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
6N52
Type
Automatic
Quartz
Power Reserve
38h
40h
Jewels
26
25

Pricing

1 specs
MSRP
$3,520
$335

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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 Essentials Quartz

Seiko Essentials Quartz is widely praised for its exceptional value and comfortable, lightweight wearability, particularly the titanium models on mesh which weigh only 50g. Owners highlight the thin 8.4mm case, sapphire crystal, and 100m water resistance as key strengths. One owner noted the dark greenish dial was less impressive than a black alternative. The titanium bracelet's wider gaps due to its smaller center link drew criticism from one user. Overall, owners rate the Seiko Essentials Quartz highly for its comfortable, lightweight titanium build and impressive specifications at its price point.

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