Seiko Prospex Sea 1968 Heritage Diver's GMTvsZENEA ULA Diver

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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.

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

Prospex Sea 1968 Heritage Diver's GMT

ZENEA ULA Diver at true scale

ULA Diver

Diameter

42mm

41mm

Lug-to-Lug

48.6mm

48mm

lowest

Thickness

13.3mm

12mm

lowest

Water Resistance

300m

300m

Power Reserve

72h

n/a

MSRP

$1,700

n/a

Movement

Seiko 6R54

ETA 2824-2

Case

3 specs
Diameter
42mm
41mm
Thickness
13.3mm
12mm
Lug-to-Lug
48.6mm
48mm

Crystal & Dial

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

Movement

3 specs
Caliber
Seiko 6R54
ETA 2824-2
Power Reserve
72h
n/a
Jewels
24
0

Pricing

1 specs
MSRP
$1,700
n/a
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Reviews

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

Seiko Prospex Sea 1968 Heritage Diver's GMT

Owners and reviewers widely praise the Seiko Prospex Sea 1968 Heritage Diver's GMT Watch for its excellent value, Marinemaster-style build, and comfortable 42mm steel case with a 4:00 crown position. The watch features a refined clasp with an impressive 15mm of micro-adjustment and a caller-style GMT complication. While the 6R54 movement's stated accuracy is +25 to -15 seconds per day, real-world performance is often found to be better. The watch is priced at $1,700 USD. Overall, owners and reviewers rate the Seiko Prospex Sea 1968 Heritage Diver's GMT Watch highly for its attractive design and robust build quality at its price point.

ZENEA ULA Diver

Owners praise the Zenea Ula Diver's unique, well-made bezel and the comfort of its slide-adjust bracelet. Reviewers note its robust build and comfortable 41mm size, with one enthusiast highlighting its sapphire crystal and ceramic bezel. One owner reports zero issues with the watch. Overall, owners and reviewers rate the Zenea Ula Diver highly for its practical design and comfortable wearability at the price.

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