Seiko Prospex Sea 1968 Heritage Diver's GMTvsZelos Great White 43

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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

Zelos Great White 43 at true scale

Great White 43

Diameter

42mm

43mm

Lug-to-Lug

48.6mm

n/a

Thickness

12.9mm

12mm

lowest

Water Resistance

200m

300m

highest

Power Reserve

72h

n/a

MSRP

$1,500

$699

lowest

Movement

Seiko 6R54

Miyota 9015

Case

6 specs
Diameter
42mm
43mm
Thickness
12.9mm
12mm
Lug-to-Lug
48.6mm
n/a
Lug Width
20mm
22mm
Material
Stainless Steel
Titanium (DLC coated)
Water Resistance
200m
300m

Crystal & Dial

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

Movement

3 specs
Caliber
Seiko 6R54
Miyota 9015
Power Reserve
72h
0h
Jewels
24
0

Pricing

1 specs
MSRP
$1,500
$699
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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

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.

Zelos Great White 43

Owners widely praise the Zelos Great White 43 for its exceptional lume, with specific mentions of "unbelievable" and "amazing" brightness, particularly on carbon and Frost dials. The craftsmanship and finishing are consistently described as top-notch, featuring sharp meteorite dial etching and impressive bezel action. Some owners find the 43mm case wears well, though it is noted as large. One owner found the bracelet sharp and the lume appeared yellow in daylight, contrasting with online photos. Overall, owners rate the Zelos Great White 43 highly for its exceptional lume and overall finishing at the price point.

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