Side by side

Phoibos VoyagervsSeiko Prospex Sea 1968 Heritage Diver's GMT

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Voyager
PhoibosVoyager
MSRP $350
Prospex Sea 1968 Heritage Diver's GMT
SeikoProspex Sea 1968 Heritage Diver's GMT
MSRP $1,500

At a glance

9 of 29 specs differ
Diameter
Voyager39mm
Prospex Sea 1968 Heritage Diver's GMT42mm
Power Reserve
Voyager40h
Prospex Sea 1968 Heritage Diver's GMT72h
Water Resistance
Voyager200m
Prospex Sea 1968 Heritage Diver's GMT200m
MSRP
Voyager$350
Prospex Sea 1968 Heritage Diver's GMT$1,500

Full specifications

Case

3 specs
Diameter
39mm
42mm
Thickness
13.5mm
12.9mm
Lug-to-Lug
45mm
48.6mm

Crystal & Dial

2 specs
AR Coating
Yes
Anti-reflective coating on inner surface
Lume
Super-LumiNova
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
SII NH35
6R54
Power Reserve
40h
72h
Jewels
25
24

Pricing

1 specs
MSRP
$350
$1,500

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What people say

Owners + reviewers, side by side

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

Phoibos Voyager

The Phoibos Voyager is noted for its attractive MOP dial that plays with light and good overall finishing, along with a fun octopus logo. However, the red-on-red date wheel is illegible and may be misaligned. One owner flags the 13.5mm thick case, while comfortable at 39mm, as prone to striking objects. Overall, owners appreciate the dial's visual appeal and finishing, despite legibility issues with the date wheel.

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 comfortable wearability, offering good value for its price point. Owners and reviewers highlight the attractive silver/white sunray dial, blue ceramic bezel, and the premium feel of the improved bracelet clasp with excellent micro-adjustment. The Caliber 6R54 movement provides a 72-hour power reserve, and real-world accuracy often exceeds its stated range of +25 to -15 seconds per day, with some owners reporting figures around +3 to +5 seconds per day. However, the caller-style GMT functionality is a point of contention for some, who find the GMT scale difficult to read and prefer a flyer GMT at this price. Some also find the crown position at 4 o'clock undesirable, and a few note a lack of dial contrast or illegibility of the inner bezel.

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