Side by side

Fortis Marinemaster M-40vsIslander Islander JFK Automatic GMT Watch with Batman Dial #ISL-338

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 JFK Automatic GMT Watch with Batman Dial #ISL-338
IslanderIslander JFK Automatic GMT Watch with Batman Dial #ISL-338
MSRP $429

At a glance

17 of 29 specs differ
Diameter
Marinemaster M-4040mm
Islander JFK Automatic GMT Watch with Batman Dial #ISL-33842mm
Power Reserve
Marinemaster M-4038h
Islander JFK Automatic GMT Watch with Batman Dial #ISL-338
Water Resistance
Marinemaster M-40300m
Islander JFK Automatic GMT Watch with Batman Dial #ISL-338200m
MSRP
Marinemaster M-40$3,520
Islander JFK Automatic GMT Watch with Batman Dial #ISL-338$429

Full specifications

Case

8 specs
Category
Diver
GMT
Diameter
40mm
42mm
Thickness
13mm
14.5mm
Lug-to-Lug
47.8mm
Lug Width
21mm
20mm
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 NH34
Beat Rate
28,800 vph
0 vph
Power Reserve
38h
0h
Jewels
26
0

Pricing

1 specs
MSRP
$3,520
$429

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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.

Islander JFK Automatic GMT Watch with Batman Dial #ISL-338

Owners widely praise the Islander JFK Automatic GMT Watch with Batman Dial #ISL-338 for its attractive dial texture and Pepsi bezel, with some finding the gold-tone accents and overall aesthetic to be a standout feature. The watch is also noted for its comfortable wearability and a useful GMT function, making it a popular choice for daily wear and vacations, further supported by its 200m water resistance. On balance, owners rate the Islander JFK Automatic GMT Watch with Batman Dial #ISL-338 highly for its visually appealing design and practical features at its price point.

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