BERNY BERNY-Men Automatic Compressor-style Diver Watch V4-AM439MSvsSeiko Prospex Sea 1968 Heritage Diver's GMT

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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 BERNY-Men Automatic Compressor-style Diver Watch V4-AM439MS at true scale

BERNY-Men Automatic Compressor-style Diver Watch V4-AM439MS

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

Prospex Sea 1968 Heritage Diver's GMT

Diameter

42mm

42mm

Lug-to-Lug

49mm

48.6mm

lowest

Thickness

13.5mm

12.9mm

lowest

Water Resistance

200m

200m

Power Reserve

n/a

72h

MSRP

$154

lowest

$1,500

Movement

Miyota 8215

Seiko 6R54

Case

4 specs
Thickness
13.5mm
12.9mm
Lug-to-Lug
49mm
48.6mm
Lug Width
22mm
20mm
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
n/a
72h
Jewels
0
24

Pricing

1 specs
MSRP
$154
$1,500
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Reviews

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

BERNY BERNY-Men Automatic Compressor-style Diver Watch V4-AM439MS

The BERNY BERNY-Men Automatic Compressor-style Diver Watch V4-AM439MS is praised for its solid build, comfortable wear, and great lume, with owners specifically noting the exceptional anti-reflective coating on its sapphire crystals, which some feel surpasses that on watches from Citizen and San Martin. The watch features a Miyota 8215 automatic movement, 200m water resistance, and a 42mm case, with one owner highlighting the second crown's function for controlling the inner bezel. It was purchased for as low as $70 on AliExpress. Overall, owners rate the BERNY BERNY-Men Automatic Compressor-style Diver Watch V4-AM439MS highly for its impressive build quality and visual appeal at its price point.

Seiko Prospex Sea 1968 Heritage Diver's GMT

The Seiko Prospex Sea 1968 Heritage Diver's GMT is widely praised for its build quality, finishing, and value, with owners noting its comfortable wearability and attractive aesthetic, particularly the silver/white sunray dial and blue ceramic bezel. The improved bracelet clasp with excellent micro-adjustment is a recurring positive point. Some owners report accuracy figures of +3 seconds per day or +/- 5 seconds per day, exceeding the movement's stated range. However, the GMT functionality is considered secondary to its dive watch capabilities by some, with the GMT scale being difficult to read and the caller-style GMT movement being a drawback for certain users. The dial contrast is also noted as lacking by some, and the crown at 4 o'clock is undesirable for a few. On balance, owners and reviewers rate the Seiko Prospex Sea 1968 Heritage Diver's GMT highly for its blend of dive watch character and GMT functionality, offering significant features for its price.

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