BERNY Compressor-style Diver V4 AM181MSvsSeiko Prospex Sea 1968 Heritage Diver's GMT Limited Edition

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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.

BERNY Compressor-style Diver V4 AM181MS at true scale

Compressor-style Diver V4 AM181MS

Seiko Prospex Sea 1968 Heritage Diver's GMT Limited Edition at true scale

Prospex Sea 1968 Heritage Diver's GMT Limited Edition

Diameter

42mm

42mm

Lug-to-Lug

49mm

48.6mm

lowest

Thickness

14mm

13.3mm

lowest

Water Resistance

200m

300m

highest

Power Reserve

42h

72h

highest

MSRP

$156

lowest

$1,750

Movement

Miyota 8215

Seiko 6R54

Case

4 specs
Thickness
14mm
13.3mm
Lug-to-Lug
49mm
48.6mm
Water Resistance
200m
300m
Caseback
Exhibition
n/a

Crystal & Dial

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

Movement

3 specs
Caliber
Miyota 8215
Seiko 6R54
Power Reserve
42h
72h
Jewels
0
24

Pricing

1 specs
MSRP
$156
$1,750
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Reviews

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

BERNY Compressor-style Diver V4 AM181MS

BERNY BERNY-Men Automatic Compressor-style Diver Watch V4-AM181MS owners widely praise its solid build, comfortable wear, and excellent lume, with one owner noting the second crown operates the inner bezel. The watch features a compressor-style design, 200m water resistance, and sapphire crystal front and back, and its AR coating is considered superior by one owner. The fit and finish are reported to be on par with higher-end pieces, and many find it a sharp, well-fitting watch that they intend to keep long-term. Overall, owners rate the BERNY BERNY-Men Automatic Compressor-style Diver Watch V4-AM181MS highly for its exceptional value and impressive build quality at its price point.

Seiko Prospex Sea 1968 Heritage Diver's GMT Limited Edition

The Seiko Prospex Sea 1968 Heritage Diver's GMT Watch Limited Edition is widely praised for its excellent quality and finishing for its price, with reviewers highlighting its beautiful case, bracelet, and Lumibrite lume. Owners appreciate the comfortable 42mm case size and the 4 o'clock crown position. The watch features a sapphire crystal and uses the in-house 6R54 automatic movement with a three-day power reserve. Some reviewers note that the GMT function is secondary and that the bezel clicks are quieter than expected. The 4:30 date window splits opinion among enthusiasts, and it is described as a "caller GMT" rather than a true "traveller GMT." Overall, owners and reviewers rate the Seiko Prospex Sea 1968 Heritage Diver's GMT Watch Limited Edition highly for its excellent value, quality finishing, and comfortable wearability.

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