What movement does the Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301 run compared to the Tudor Black Bay 54?

Both watches run automatic movements — the Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301 uses the Seiko NH36 and the Tudor Black Bay 54 uses the MT5400.

Side by side

Islander Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301vsTudor Black Bay 54

Q: Which is cheaper, the Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301 or the Tudor Black Bay 54?

At MSRP the Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301 is the cheaper of the two at $399, against $4,725 for the Tudor Black Bay 54 — a $4,326 gap before any retailer discounting.

Q: Which is bigger, the Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301 or the Tudor Black Bay 54?

The Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301 wears larger at 45mm versus 37mm for the Tudor Black Bay 54 — a 8mm difference across the dial.

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

Islander Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301

islander-automatic-turtle-dive-watch-with-blue-dial-isl-301

MSRP $399

Tudor Black Bay 54

m79000b-0001

MSRP $4,725

At a glance

16 of 29 specs differ

Diameter

Islander Automatic Turtle Dive Watch with Blue Dial #ISL-30145mm

Black Bay 5437mm

Power Reserve

Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301—

Black Bay 5470h

Water Resistance

Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301200m

Black Bay 54200m

MSRP

Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301$399

Black Bay 54$4,725

Full specifications

Case

6 specs

Diameter

45mm

37mm

Thickness

15mm

11.2mm

Lug-to-Lug

47mm

46mm

Lug Width

22mm

20mm

Finish

—

Polished + Satin

Caseback

Embossed screw-in caseback

Solid screw-down

Crystal & Dial

5 specs

Crystal Shape

Double Domed

—

AR Coating

Underside

—

Dial Color

—

Blue

Indices

—

Applied

Lume

None

Super-LumiNova

Movement

4 specs

Caliber

Seiko NH36

MT5400

Power Reserve

70h

Hacking

Yes

Hand-winding

Yes

Pricing

1 specs

MSRP

$399

$4,725

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