BERNY Diver AM155MvsSeiko 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 Diver AM155M at true scale

Diver AM155M

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

50mm

48.6mm

lowest

Thickness

13mm

lowest

13.3mm

Water Resistance

200m

300m

highest

Power Reserve

n/a

72h

MSRP

$146

lowest

$1,750

Movement

Miyota 8215

Seiko 6R54

Case

4 specs
Thickness
13mm
13.3mm
Lug-to-Lug
50mm
48.6mm
Water Resistance
200m
300m
Caseback
Solid
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
0h
72h
Jewels
0
24

Pricing

1 specs
MSRP
$146
$1,750
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Reviews

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

BERNY Diver AM155M

Owners widely praise the BERNY BERNY-Men Automatic Diver Watch-AM155M for its exceptional anti-reflective coating and outstanding lume, with one owner describing it as an "absolute lume monster" that surpasses higher-priced alternatives. The watch's design is seen by some as inspired by the Seiko Monster, while others consider it a clone of the Halios Holotype, and the prominent "BERNY" branding on the dial is a deterrent for some potential buyers. Accuracy varies, with one owner reporting +17 seconds per day, while others do not specify. The Miyota 8215 movement is a point of contention for some enthusiasts, who feel it is a significant drawback at the $300 price point, though it is considered acceptable at lower price points or if replaced with an NH-35A. Overall, owners rate the BERNY BERNY-Men Automatic Diver Watch-AM155M highly for its impressive lume and anti-reflective coating at its price, despite some reservations about the movement and branding.

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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