Islander Bayport Automatic Diver with Blue Wave DialvsSeiko Prospex Sea
lug2lug doesn't sell watches. Buy links open the brand's or seller's own site. Some links are affiliate links: lug2lug may earn a commission at no extra cost to you. Disclosures
Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.
Bayport Automatic Diver with Blue Wave Dial
Prospex Sea
Diameter
40mm
41.3mm
Lug-to-Lug
48mm
lowest
48.2mm
Thickness
13.5mm
12.5mm
lowest
Water Resistance
200m
300m
highest
Power Reserve
n/a
72h
MSRP
$349
lowest
$1,100
Movement
Seiko NH35
Seiko 6R55
Case
5 specsDiameter
40mm
41.3mm
Thickness
13.5mm
12.5mm
Lug-to-Lug
48mm
48.2mm
Water Resistance
200m
300m
Caseback
Solid
n/a
Crystal & Dial
3 specsCrystal Shape
Flat
n/a
AR Coating
Yes
Anti-reflective coating on inner surface
Lume
None
LumiBrite on hands, index(es) and bezel
Movement
3 specsCaliber
Seiko NH35
Seiko 6R55
Power Reserve
0h
72h
Jewels
0
24
Pricing
1 specsMSRP
$349
$1,100
Similar watches
Matched to the watches above on size, movement, style and price, microbrands first. Open any one to dig in.
DiscussionNot started
Also compared
Comparisons nearby in the catalog: alternatives to the watches above paired against the matchup.