Side by side
Islander Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311vsSeiko Prospex Sea
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
The bottom line
The 34mm Prospex Sea wears 6mm narrower than the 40mm Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311 — that's a meaningful jump on most wrists.
Check prices & track
Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311
MSRP $399
Seiko Prospex Sea
MSRP $795
At a glance
15 of 29 specs differDiameter
Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-31140mm
Prospex Sea34mm
Power Reserve
Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311—
Prospex Sea40h
Water Resistance
Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311200m
Prospex Sea200m
MSRP
Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311$399
Prospex Sea$795
Full specifications
Case
5 specsDiameter
40mm
34mm
Thickness
13.5mm
8.7mm
Lug-to-Lug
48mm
40.8mm
Lug Width
20mm
16mm
Finish
—
Brushed and polished
Crystal & Dial
4 specsAR Coating
Yes
Anti-reflective coating on inner surface
Dial Color
—
Black
Indices
—
Applied
Lume
None
LumiBrite on hands and index(es)
Movement
5 specsCaliber
Seiko NH35
6N01
Type
Automatic
Quartz
Beat Rate
0 vph
28,800 vph
Power Reserve
0h
40h
Jewels
0
25
Pricing
1 specsMSRP
$399
$795
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