Side by side

Fortis Marinemaster M-40vsIslander Islander Red October V2 Dive Watch with Radiant Blue Dial #ISL-323

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
Islander Red October V2 Dive Watch with Radiant Blue Dial #ISL-323
IslanderIslander Red October V2 Dive Watch with Radiant Blue Dial #ISL-323
MSRP $449

At a glance

16 of 29 specs differ
Diameter
Marinemaster M-4040mm
Islander Red October V2 Dive Watch with Radiant Blue Dial #ISL-32342mm
Power Reserve
Marinemaster M-4038h
Islander Red October V2 Dive Watch with Radiant Blue Dial #ISL-323
Water Resistance
Marinemaster M-40300m
Islander Red October V2 Dive Watch with Radiant Blue Dial #ISL-323200m
MSRP
Marinemaster M-40$3,520
Islander Red October V2 Dive Watch with Radiant Blue Dial #ISL-323$449

Full specifications

Case

7 specs
Diameter
40mm
42mm
Thickness
13mm
14mm
Lug-to-Lug
0mm
Lug Width
21mm
22mm
Finish
Brushed and polished
Water Resistance
300m
200m
Caseback
Solid
Screw-down

Crystal & Dial

4 specs
Crystal Shape
Flat
Domed
AR Coating
Inner
Underside
Dial Color
Orange
Indices
Applied

Movement

4 specs
Caliber
Sellita SW220-1
Seiko NH38
Beat Rate
28,800 vph
0 vph
Power Reserve
38h
0h
Jewels
26
0

Pricing

1 specs
MSRP
$3,520
$449

Follow this matchup

Get a note when Fortis Marinemaster M-40 vs Islander Red October V2 Dive Watch with Radiant Blue Dial #ISL-323 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.

Islander Red October V2 Dive Watch with Radiant Blue Dial #ISL-323

Owners widely praise the Islander Red October V2 Dive Watch with Radiant Blue Dial #ISL-323 for its stunning radiant blue dial and red seconds hand, with some noting its resemblance to a luxury model. The watch is frequently cited as offering excellent value for its price. Some owners express a dislike for the circle/triangle logo, while others appreciate the availability of both 38mm and 43mm size options. Overall, owners rate the Islander Red October V2 Dive Watch with Radiant Blue Dial #ISL-323 highly for its aesthetic appeal and value proposition.

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.