Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311vsSeiko Prospex Sea
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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.
Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311
Prospex Sea
Diameter
40mm
41.7mm
Lug-to-Lug
48mm
lowest
49.5mm
Thickness
13.5mm
12.3mm
lowest
Water Resistance
200m
200m
Power Reserve
n/a
41h
MSRP
$349
lowest
$595
Movement
Seiko NH35
Seiko 4R35
Case
4 specsDiameter
40mm
41.7mm
Thickness
13.5mm
12.3mm
Lug-to-Lug
48mm
49.5mm
Caseback
Solid
n/a
Crystal & Dial
4 specsCrystal
Sapphire
Hardlex
Crystal Shape
Flat
n/a
AR Coating
Yes
n/a
Lume
None
LumiBrite on hands, index(es) and bezel
Movement
3 specsCaliber
Seiko NH35
Seiko 4R35
Power Reserve
0h
41h
Jewels
0
23
Pricing
1 specsMSRP
$349
$595
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