Side by side

Islander Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311vsTudor Black Bay

Q: Which is bigger, the Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311 or the Tudor Black Bay?

The Tudor Black Bay wears larger at 41mm versus 40mm for the Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311 — a 1mm difference across the dial.

Q: What movement does the Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311 run compared to the Tudor Black Bay?

Both watches run automatic movements — the Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311 uses the Seiko NH35 and the Tudor Black Bay uses the MT5602.

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

Islander Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311

islander-bayport-automatic-dive-watch-with-blue-wave-dial-isl-311

MSRP $399

Tudor Black Bay

m79230g-0001

At a glance

14 of 29 specs differ

Diameter

Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-31140mm

Black Bay41mm

Power Reserve

Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311—

Black Bay70h

Water Resistance

Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311200m

Black Bay200m

MSRP

Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311$399

Black Bay—

Full specifications

Case

6 specs

Diameter

40mm

41mm

Thickness

13.5mm

14.7mm

Lug-to-Lug

48mm

46mm

Lug Width

20mm

22mm

Finish

—

Polished + Satin

Caseback

Solid

Engraved

Crystal & Dial

3 specs

AR Coating

Yes

Inner

Dial Color

—

Black

Indices

—

Applied

Movement

4 specs

Caliber

Seiko NH35

MT5602

Beat Rate

0 vph

28,800 vph

Power Reserve

70h

Jewels

Pricing

1 specs

MSRP

$399

—

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