Side by side

Astor + Banks Fortitude ProvsIslander Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311

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

Fortitude Pro
Astor + BanksFortitude Pro
MSRP $675
Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311
IslanderIslander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311
MSRP $399

At a glance

14 of 29 specs differ
Diameter
Fortitude Pro38.5mm
Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-31140mm
Power Reserve
Fortitude Pro40h
Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311—
Water Resistance
Fortitude Pro200m
Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311200m
MSRP
Fortitude Pro$675
Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311$399

Full specifications

Case

6 specs
Category
Sport
Diver
Diameter
38.5mm
40mm
Thickness
11.9mm
13.5mm
Lug-to-Lug
45.5mm
48mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed and polished
—

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
Magenta
—
Indices
Applied
—

Movement

4 specs
Caliber
Miyota 9015
Seiko NH35
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
0h
Jewels
25
0

Pricing

1 specs
MSRP
$675
$399

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