Islander Automatic Diver #ISL-18vsSeiko King Turtle

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Islander Automatic Diver #ISL-18 at true scale

Automatic Diver #ISL-18

Seiko King Turtle at true scale

King Turtle

Diameter

43mm

45mm

Lug-to-Lug

46mm

lowest

47.7mm

Thickness

14mm

13.2mm

lowest

Water Resistance

200m

200m

Power Reserve

n/a

41h

MSRP

$369

lowest

$650

Movement

Seiko NH36

Seiko 4R36

Case

4 specs
Diameter
43mm
45mm
Thickness
14mm
13.2mm
Lug-to-Lug
46mm
47.7mm
Caseback
Engraved screw-in back
n/a

Crystal & Dial

3 specs
Crystal Shape
Double Domed
n/a
AR Coating
Yes
Anti-reflective coating on inner surface
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Seiko NH36
Seiko 4R36
Power Reserve
0h
41h
Jewels
0
24

Pricing

1 specs
MSRP
$369
$650
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Islander Automatic Diver #ISL-18

Islander Automatic Dive Watch #ISL-18 owners praise its 43mm size, double-domed sapphire crystal with anti-reflective coating, and embossed ceramic bezel. The watch is noted for its quality and weight at its $300 price point, featuring a Seiko NH36 automatic movement with hand-winding and hacking capabilities. On balance, owners rate the Islander Automatic Dive Watch #ISL-18 highly for its robust features and build quality at an accessible price.

Seiko King Turtle

Seiko King Turtle is widely praised for its excellent value and robust design, featuring the reliable 4R36 movement. Owners appreciate its superior lume and a bezel action described as smoother and more precise than some siblings. The 45mm cushion case, while substantial, wears smaller than expected due to its shape and short lug-to-lug distance. On balance, owners and reviewers rate the Seiko King Turtle highly for its proven design and overall value proposition.

From video reviewers

The King Turtle's ceramic bezel and sapphire crystal are significant upgrades. Reviewers noted a slight price increase for these features.

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