Seiko Prospex Sea 1968 Heritage Diver's GMTvsTimefactors Voyager 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.

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

Prospex Sea 1968 Heritage Diver's GMT

Timefactors Voyager GMT at true scale

Voyager GMT

Diameter

42mm

42.5mm

Lug-to-Lug

48.6mm

lowest

52mm

Thickness

12.9mm

lowest

14.5mm

Water Resistance

200m

300m

highest

Power Reserve

72h

n/a

MSRP

$1,500

$1,174

lowest

Movement

Seiko 6R54

ETA 2893-2

Case

5 specs
Diameter
42mm
42.5mm
Thickness
12.9mm
14.5mm
Lug-to-Lug
48.6mm
52mm
Lug Width
20mm
22mm
Water Resistance
200m
300m

Crystal & Dial

3 specs
AR Coating
Anti-reflective coating on inner surface
n/a
Dial Color
n/a
Black
Lume
LumiBrite on hands, index(es) and bezel
SuperLuminova

Movement

3 specs
Caliber
Seiko 6R54
ETA 2893-2
Power Reserve
72h
n/a
Jewels
24
0

Pricing

1 specs
MSRP
$1,500
$1,174
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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.

Timefactors Voyager GMT

Owners widely praise the Timefactors Voyager GMT for its vintage dial design and jubilee-style bracelet. One owner notes the 42.5mm case, despite a 15mm thickness, is surprisingly wearable on a 6.75-inch wrist. Accuracy is reported as perfect by one owner. However, some find the 15mm thickness excessive for their wrists, and one commenter considers the lack of a date window a deal-breaker. Overall, owners rate the Timefactors Voyager GMT highly for its vintage aesthetic and bracelet, with wearability being a point of discussion due to its thickness.