Side by side

Seiko Prospex SeavsIslander 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.

Prospex Sea
SeikoProspex Sea
Islander JFK Automatic GMT Watch with Batman Dial #ISL-338
IslanderIslander JFK Automatic GMT Watch with Batman Dial #ISL-338
MSRP $429
What people say

Owners + reviewers, side by side

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

Seiko Prospex Sea

Owners widely praise the Seiko Prospex Sea for its excellent value, solid build, and comfortable wearability, with specific mentions of its matte black dial, excellent lume, and cushion case that wears smaller than its dimensions suggest. The 4R36 movement is noted for hacking and hand-winding capabilities, and the bezel action is described as smooth and precise. Some owners find the watch to be a legitimate tool with a fair price, while others describe it as big, thick, and heavy, uncomfortable for smaller wrists, though this is subjective as one owner found the size perfect. The solar quartz movement is also highlighted as a collection-worthy feature. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its exceptional value and comfortable, classic design.

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.

At a glance

16 of 29 specs differ
Diameter
Prospex Sea42mm
Islander JFK Automatic GMT Watch with Batman Dial #ISL-33842mm
Power Reserve
Prospex Sea72h
Islander JFK Automatic GMT Watch with Batman Dial #ISL-338
Water Resistance
Prospex Sea300m
Islander JFK Automatic GMT Watch with Batman Dial #ISL-338200m
MSRP
Prospex Sea
Islander JFK Automatic GMT Watch with Batman Dial #ISL-338$429

Full specifications

Case

6 specs
Category
Diver
GMT
Thickness
13.3mm
14.5mm
Lug-to-Lug
48.6mm
47.8mm
Finish
Brushed and polished
Water Resistance
300m
200m
Caseback
Solid
Screw-down

Crystal & Dial

5 specs
Crystal Shape
Flat
Domed
AR Coating
Anti-reflective coating on inner surface
Underside
Dial Color
Black
Indices
Applied
Lume
LumiBrite on hands, index(es) and bezel
None

Movement

4 specs
Caliber
6R54
Seiko NH34
Beat Rate
28,800 vph
0 vph
Power Reserve
72h
0h
Jewels
24
0

Pricing

1 specs
MSRP
$429
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