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.
At a glance
15 of 29 specs differDiameter
Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-31140mm
Prospex Sea43.5mm
Power Reserve
Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311—
Prospex Sea70h
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$1,500
Full specifications
Case
6 specsDiameter
40mm
43.5mm
Thickness
13.5mm
13.3mm
Lug-to-Lug
48mm
51mm
Lug Width
20mm
22mm
Material
Stainless Steel
Titanium
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
4 specsCaliber
Seiko NH35
6R35
Beat Rate
0 vph
28,800 vph
Power Reserve
0h
70h
Jewels
0
24
Pricing
1 specsMSRP
$399
$1,500
More watches worth a look
Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.
Follow this matchup
Get a note when Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311 vs Seiko Prospex Sea gets more votes, a community discussion, or a price drop. No account needed.
People also compared
Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.
Seiko Prospex SeavsZelos Swordfish 3Seiko Prospex SeavsWilliam Wood FearlessSheffield 1AvsSeiko Prospex SeaSheffield 1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no datevsSeiko Prospex SeaIslander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311vsSpinnaker Tesei TitaniumIslander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311vsBorealis Watch Co. Jamanta











