Side by side

Seiko Prospex SeavsSeiko Prospex Sea 1968 Heritage Diver's GMT Watch

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

Prospex Sea
SeikoProspex Sea
MSRP $1,100

At a glance

5 of 29 specs differ
Diameter
Prospex Sea41.3mm
Prospex Sea 1968 Heritage Diver's GMT Watch42mm
Power Reserve
Prospex Sea72h
Prospex Sea 1968 Heritage Diver's GMT Watch72h
Water Resistance
Prospex Sea300m
Prospex Sea 1968 Heritage Diver's GMT Watch300m
MSRP
Prospex Sea$1,100
Prospex Sea 1968 Heritage Diver's GMT Watch$1,700

Full specifications

Case

3 specs
Diameter
41.3mm
42mm
Thickness
12.5mm
13.3mm
Lug-to-Lug
48.2mm
48.6mm

Movement

1 specs
Caliber
6R55
6R54

Pricing

1 specs
MSRP
$1,100
$1,700

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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.

Seiko Prospex Sea

Seiko Prospex Sea models are widely praised for their excellent build quality, value for money, and comfortable wearability, with many appreciating the vintage-inspired designs and robust construction. Owners note the silicone straps are surprisingly comfortable and well-finished, and the Lumibrite lume is excellent. However, some find the 44.3mm size and thickness too large for smaller wrists, though others report the sizing as perfect. The 6R15 movement in some variants offers accuracy around +4 seconds per day with a 50-hour power reserve, while newer movements offer more. Some models are criticized for a bracelet width not matching the case size or a rudimentary clasp for their price point. Overall, owners and reviewers rate the Seiko Prospex Sea highly for its impressive case work and finishing at its price point.

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.

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