Side by side

Islander Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311vsSeiko Prospex Sea 1965 Heritage Diver's Watch

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

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Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311
IslanderIslander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311
MSRP $399
Prospex Sea 1965 Heritage Diver's Watch
SeikoProspex Sea 1965 Heritage Diver's Watch
MSRP $1,300
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Buy used on eBay ↗
Buy from Seiko ↗
Buy used on eBay ↗

At a glance

14 of 29 specs differ
Diameter
Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-31140mm
Prospex Sea 1965 Heritage Diver's Watch40mm
Power Reserve
Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311—
Prospex Sea 1965 Heritage Diver's Watch72h
Water Resistance
Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311200m
Prospex Sea 1965 Heritage Diver's Watch300m
MSRP
Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311$399
Prospex Sea 1965 Heritage Diver's Watch$1,300

Full specifications

Case

4 specs
Thickness
13.5mm
13mm
Lug-to-Lug
48mm
46.4mm
Finish
—
Brushed and polished
Water Resistance
200m
300m

Crystal & Dial

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

Movement

4 specs
Caliber
Seiko NH35
6R55
Beat Rate
0 vph
28,800 vph
Power Reserve
0h
72h
Jewels
0
24

Pricing

1 specs
MSRP
$399
$1,300
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