Side by side

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

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

Islander JFK Automatic GMT Watch with Batman Dial #ISL-338
IslanderIslander JFK Automatic GMT Watch with Batman Dial #ISL-338
MSRP $429
Monster
SeikoMonster
MSRP $550
What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

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.

Seiko Monster

Owners widely praise the Seiko Prospex Sea for its excellent value, robust build, and superb lume, with many noting its comfortable wearability. Reviewers consistently highlight its impressive finishing and classic dive watch design, often comparing it favorably to older models. Some owners find the size substantial, with one noting it as big, thick, and heavy on a 6.5-inch wrist, while others find it perfect. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its exceptional value and robust, classic dive watch design.

At a glance

17 of 29 specs differ
Diameter
Islander JFK Automatic GMT Watch with Batman Dial #ISL-33842mm
Monster42.4mm
Power Reserve
Islander JFK Automatic GMT Watch with Batman Dial #ISL-338
Monster41h
Water Resistance
Islander JFK Automatic GMT Watch with Batman Dial #ISL-338200m
Monster200m
MSRP
Islander JFK Automatic GMT Watch with Batman Dial #ISL-338$429
Monster$550

Full specifications

Case

6 specs
Category
GMT
Diver
Diameter
42mm
42.4mm
Thickness
14.5mm
13.4mm
Lug-to-Lug
47.8mm
49.4mm
Finish
Brushed and polished
Caseback
Screw-down
Solid

Crystal & Dial

6 specs
Crystal
Sapphire
Hardlex
Crystal Shape
Domed
Flat
AR Coating
Underside
Inner
Dial Color
Black
Indices
Applied
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

4 specs
Caliber
Seiko NH34
4R36
Beat Rate
0 vph
28,800 vph
Power Reserve
0h
41h
Jewels
0
24

Pricing

1 specs
MSRP
$429
$550
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