Side by side
Borealis Watch Co. Sea Storm MK2vsIslander 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.
At a glance
18 of 29 specs differDiameter
Sea Storm MK241.50mm
Islander JFK Automatic GMT Watch with Batman Dial #ISL-33842mm
Power Reserve
Sea Storm MK240h
Islander JFK Automatic GMT Watch with Batman Dial #ISL-338—
Water Resistance
Sea Storm MK2300m
Islander JFK Automatic GMT Watch with Batman Dial #ISL-338200m
MSRP
Sea Storm MK2$475
Islander JFK Automatic GMT Watch with Batman Dial #ISL-338$429
Full specifications
Case
8 specsCategory
Diver
GMT
Diameter
41.50mm
42mm
Thickness
14.15mm
14.5mm
Lug-to-Lug
48.50mm
47.8mm
Lug Width
20mm
20mm
Finish
Brushed and polished
—
Water Resistance
300m
200m
Caseback
Solid
Screw-down
Crystal & Dial
5 specsCrystal Shape
Flat
Domed
AR Coating
Inner
Underside
Dial Color
Black
—
Indices
Applied
—
Lume
BGW9
None
Movement
4 specsCaliber
NH38
Seiko NH34
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
0h
Jewels
25
0
Pricing
1 specsMSRP
$475
$429
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