Side by side

Seiko Prospex Sea 1968 Heritage Diver's GMT Watch Limited EditionvsTissot Seastar 1000

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 Limited Edition

The Seiko Prospex Sea 1968 Heritage Diver's GMT Watch Limited Edition is widely praised for its excellent quality and finishing relative to its price point, featuring a beautiful case, bracelet, and strong Lumibrite lume. Enthusiasts and reviewers highlight the comfortable 42mm case size and the distinctive 4 o'clock crown position. The watch is powered by the in-house 6R54 automatic movement, offering a 72-hour power reserve and rated accuracy of -5/+10 seconds per day, though one source notes the GMT function is secondary. Some find the 4:30 date window divisive, and the bezel clicks are described as quieter than expected. On balance, owners and reviewers rate the Seiko Prospex Sea 1968 Heritage Diver's GMT Watch Limited Edition highly for its refined design and strong value proposition.

Tissot Seastar 1000

Owners widely praise the Tissot Seastar 1000 for its value, solid build, and 300m water resistance, with reviewers highlighting its comfortable wearability and affordable price point for a sporty diver. Some owners find the bezel difficult to use and note glare from the crystal, while others criticize the lume and bracelet quality, with one owner describing the clasp as flimsy. Accuracy figures for the quartz models are excellent, and the Powermatic 80 movement is considered reliable. Overall, owners and reviewers rate the Tissot Seastar 1000 highly for its strong value proposition as a sporty, affordable everyday watch.

From video reviewers

The 80-hour power reserve from the Powermatic 80 movement is a significant strength. Reviewers did not reach a consensus on any weaknesses.

At a glance

11 of 29 specs differ
Diameter
Prospex Sea 1968 Heritage Diver's GMT Watch Limited Edition42mm
Seastar 100040mm
Power Reserve
Prospex Sea 1968 Heritage Diver's GMT Watch Limited Edition72h
Seastar 100080h
Water Resistance
Prospex Sea 1968 Heritage Diver's GMT Watch Limited Edition300m
Seastar 1000300m
MSRP
Prospex Sea 1968 Heritage Diver's GMT Watch Limited Edition$1,750
Seastar 1000$875

Full specifications

Case

3 specs
Diameter
42mm
40mm
Thickness
13.3mm
12.48mm
Lug-to-Lug
48.6mm
40mm

Crystal & Dial

4 specs
AR Coating
Anti-reflective coating on inner surface
Yes
Dial Color
Graded grey-black
Indices
Indexes
Lume
LumiBrite on hands, index(es) and bezel
Super-LumiNova ®

Movement

3 specs
Caliber
6R54
Tissot Powermatic 80
Power Reserve
72h
80h
Jewels
24
0

Pricing

1 specs
MSRP
$1,750
$875
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