Islander Black Dial Automatic Diver with DLC CasevsSeiko Prospex Sea

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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 Black Dial Automatic Diver with DLC Case at true scale

Black Dial Automatic Diver with DLC Case

Seiko Prospex Sea at true scale

Prospex Sea

Diameter

43mm

43.8mm

Lug-to-Lug

46mm

lowest

48.7mm

Thickness

14mm

12.8mm

lowest

Water Resistance

200m

200m

Power Reserve

n/a

41h

MSRP

$429

lowest

$625

Movement

Seiko NH36

Seiko 4R35

Case

4 specs
Diameter
43mm
43.8mm
Thickness
14mm
12.8mm
Lug-to-Lug
46mm
48.7mm
Caseback
Engraved screw-in back
n/a

Crystal & Dial

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

Movement

3 specs
Caliber
Seiko NH36
Seiko 4R35
Power Reserve
0h
41h
Jewels
0
23

Pricing

1 specs
MSRP
$429
$625
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Reviews

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

Islander Black Dial Automatic Diver with DLC Case

Owners widely report good value for the money in the Islander Black Dial Automatic Dive Watch with DLC Case #ISL-34, with some finding its case, crystal, and bracelet quality superior to similarly priced non-Prospex Seiko models. Some owners note a lack of "wow" factor and bracelet rattle in competing models. Overall, owners rate the Islander Black Dial Automatic Dive Watch with DLC Case #ISL-34 highly for its build quality and value proposition.

Seiko Prospex Sea

The Seiko Prospex Sea is widely praised for its excellent value as a sport watch, with owners highlighting its comfortable wearability and generous lume. Reviewers note its solid build quality and attractive design, with some specifically mentioning the matte black dial as a strong point. One owner reports accuracy around +1 to +2 seconds per day. The 43.8mm case size is considered substantial by some, and one owner found the watch heavy and thick, regretting not choosing a different variant. Overall, owners and reviewers rate the Seiko Prospex Sea highly for its blend of classic design and modern utility at an accessible price point.

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