Side by side

Seiko Prospex Sea 1968 Heritage Diver's GMT WatchvsDOXA SUB 250T GMT

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

What people say

Owners + reviewers, side by side

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

Seiko Prospex Sea 1968 Heritage Diver's GMT Watch

The Seiko Prospex Sea 1968 Heritage Diver's GMT Watch offers a 300-meter depth rating and a caller-style GMT complication powered by the Caliber 6R54 movement, which provides a 72-hour power reserve. Reviewers note its refined clasp with extensive micro-adjustment. However, the movement's accuracy, ranging from +25 to -15 seconds per day, is considered a drawback by some. Overall, reviewers highlight the Seiko Prospex Sea 1968 Heritage Diver's GMT Watch as a good reminder of Seiko's value, despite the wide accuracy range of its movement.

DOXA SUB 250T GMT

The DOXA SUB 250T GMT is widely praised for its compact and wearable 40mm case, with reviewers noting its slim 10.85mm thickness and short lug-to-lug measurement, making it comfortable on most wrists. Its precise bezel action is described as satisfying, and the watch offers 250 meters of water resistance. The inclusion of a GMT complication is seen as a valuable addition to Doxa's utilitarian dive watch design. However, the skeletonized GMT hand is a point of contention, with some reviewers finding it quirky and less intuitive, especially when compared to the minute hand, though others note it looks better in person and is easily ignored for diving. One reviewer expressed a preference for a "flier-style" movement for a dedicated travel watch. Limited editions are noted as having a slight price premium. The Sellita SW330-2 movement is generally mentioned, with power reserve figures varying between 50 and 56 hours.

From video reviewers

The watch's refined and wearable 42mm case size is a strength. Reviewers noted the iconic Doxa aesthetic combined with GMT functionality. No shared weaknesses were identified.

At a glance

12 of 29 specs differ
Diameter
Prospex Sea 1968 Heritage Diver's GMT Watch42mm
SUB 250T GMT40mm
Power Reserve
Prospex Sea 1968 Heritage Diver's GMT Watch72h
SUB 250T GMT50h
Water Resistance
Prospex Sea 1968 Heritage Diver's GMT Watch300m
SUB 250T GMT250m
MSRP
Prospex Sea 1968 Heritage Diver's GMT Watch$1,700
SUB 250T GMT$2,790

Full specifications

Case

5 specs
Diameter
42mm
40mm
Thickness
13.3mm
0mm
Lug-to-Lug
48.6mm
0mm
Lug Width
20mm
0mm
Water Resistance
300m
250m

Crystal & Dial

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

Movement

3 specs
Caliber
6R54
Power Reserve
72h
50h
Jewels
24
0

Pricing

1 specs
MSRP
$1,700
$2,790
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