BERNY Compressor-style Diver V4 AM439MSvsSeiko Prospex Sea 1965 Heritage Diver's Watch

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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 AM439MS at true scale

Compressor-style Diver V4 AM439MS

Seiko Prospex Sea 1965 Heritage Diver's Watch at true scale

Prospex Sea 1965 Heritage Diver's Watch

Diameter

42mm

40mm

Lug-to-Lug

49mm

46.4mm

lowest

Thickness

13.5mm

13mm

lowest

Water Resistance

200m

300m

highest

Power Reserve

n/a

72h

MSRP

$154

lowest

$1,300

Movement

Miyota 8215

Seiko 6R55

Case

6 specs
Diameter
42mm
40mm
Thickness
13.5mm
13mm
Lug-to-Lug
49mm
46.4mm
Lug Width
22mm
20mm
Water Resistance
200m
300m
Caseback
Exhibition
n/a

Crystal & Dial

4 specs
Crystal Shape
n/a
Curved
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 6R55
Power Reserve
n/a
72h
Jewels
0
24

Pricing

1 specs
MSRP
$154
$1,300
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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 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 1965 Heritage Diver's Watch

Owners widely praise the Seiko Prospex Sea 1965 Heritage Diver's Watch for its refined engineering, comfortable 40mm case, and improved 300m water resistance. The watch is noted for its better build quality and finishing compared to some alternatives, featuring a mix of polished and brushed surfaces, with specific callouts for the jewel-toned teal dial with a rippling-water pattern. Some owners consider the price fair, while others suggest it is too high. Accuracy figures vary, with some owners reporting their 6R55 movement performs well within +/- 10 seconds per day, while others note theirs runs slow or have concerns about QC for the price. The bracelet, while improved, lacks modern features like quick-release or extensive micro-adjustments. Overall, owners and reviewers rate the Seiko Prospex Sea 1965 Heritage Diver's Watch highly for its refined design and build quality at its price point.

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