What movement does the Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301 run compared to the Tudor Black Bay 58 18K?

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 58 18K uses the MT5400.

Side by side

Islander Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301vsTudor Black Bay 58 18K

Q: Which is cheaper, the Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301 or the Tudor Black Bay 58 18K?

At MSRP the Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301 is the cheaper of the two at $399, against $22,550 for the Tudor Black Bay 58 18K — a $22,151 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 58 18K?

The Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301 wears larger at 45mm versus 39mm for the Tudor Black Bay 58 18K — a 6mm 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 58 18K

m79018v-0001

MSRP $22,550

At a glance

15 of 29 specs differ

Diameter

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

Black Bay 58 18K39mm

Power Reserve

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

Black Bay 58 18K70h

Water Resistance

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

Black Bay 58 18K200m

MSRP

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

Black Bay 58 18K$22,550

Full specifications

Case

7 specs

Diameter

45mm

39mm

Thickness

15mm

12.7mm

Lug-to-Lug

47mm

46mm

Lug Width

22mm

20mm

Material

Stainless Steel

18k Yellow Gold

Finish

—

Satin

Caseback

Embossed screw-in caseback

Solid screw-down

Crystal & Dial

3 specs

Crystal Shape

Double Domed

—

AR Coating

Underside

—

Dial Color

—

Green

Movement

4 specs

Caliber

Seiko NH36

MT5400

Power Reserve

70h

Hacking

Yes

Hand-winding

Yes

Pricing

1 specs

MSRP

$399

$22,550

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