Side by side

Aera Instruments M-1vsIslander 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.

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

18 of 29 specs differ
Diameter
M-139mm
Islander JFK Automatic GMT Watch with Batman Dial #ISL-33842mm
Power Reserve
M-142h
Islander JFK Automatic GMT Watch with Batman Dial #ISL-338
Water Resistance
M-1100m
Islander JFK Automatic GMT Watch with Batman Dial #ISL-338200m
MSRP
M-1
Islander JFK Automatic GMT Watch with Batman Dial #ISL-338$429

Full specifications

Case

7 specs
Category
GMT
Diameter
39mm
42mm
Thickness
13.14mm
14.5mm
Lug-to-Lug
47.6mm
47.8mm
Finish
Brushed and polished
Water Resistance
100m
200m
Caseback
Solid
Screw-down

Crystal & Dial

5 specs
Crystal Shape
Flat
Domed
AR Coating
Inner
Underside
Dial Color
Dune
Indices
Applied
Lume
Super-LumiNova
None

Movement

5 specs
Caliber
Sellita SW216-1
Seiko NH34
Type
Manual
Automatic
Beat Rate
28,800 vph
0 vph
Power Reserve
42h
0h
Jewels
25
0

Pricing

1 specs
MSRP
$429

Follow this matchup

Get a note when Aera Instruments M-1 vs Islander JFK Automatic GMT Watch with Batman Dial #ISL-338 gets more votes, a community discussion, or a price drop. No account needed.

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.