Seiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's WatchvsTimefactors 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 Marinemaster Marinemaster 1968 Heritage Diver's Watch at true scale

Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch

Timefactors Voyager GMT at true scale

Voyager GMT

Diameter

42.6mm

42.5mm

Lug-to-Lug

49.3mm

lowest

52mm

Thickness

14.1mm

lowest

14.5mm

Water Resistance

300m

300m

Power Reserve

72h

n/a

MSRP

$3,600

$1,174

lowest

Movement

Seiko 8L45

ETA 2893-2

Case

4 specs
Diameter
42.6mm
42.5mm
Thickness
14.1mm
14.5mm
Lug-to-Lug
49.3mm
52mm
Lug Width
20mm
22mm

Crystal & Dial

4 specs
Crystal Shape
Curved
n/a
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 8L45
ETA 2893-2
Power Reserve
72h
n/a
Jewels
35
0

Pricing

1 specs
MSRP
$3,600
$1,174
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Reviews

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

Seiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch

Owners and reviewers widely praise the Seiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch for its exceptional finishing, comparable to Grand Seiko, and refined design, with particular appreciation for its case shape and the 4:00 crown position. The watch is noted for its enjoyable look and feel, and some consider it a significant step up from standard Prospex models, offering premium finishing and a tool-like appearance. The movement Seiko 8L45 is mentioned, along with a 72-hour power reserve and an accuracy of -5/+10 seconds per day. However, some find the price point high, and one reviewer noted the unsigned winding crown as a missed opportunity for a watch in this price range. On balance, owners and reviewers rate the Seiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch highly for its exceptional finishing and refined design at its price point.

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.