Side by side

Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special 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 1970 Heritage Diver's Save the Ocean Special Edition

The Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition is praised for its beautiful design and refinement over previous models, featuring vertically textured glacier-inspired dials. Owners, however, consider the €1500 RRP too high, suggesting a price closer to €900-€1000, noting the aluminum bezel insert instead of ceramic. Some owners report the 6R movement runs slow. On balance, owners find the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition beautiful and a refinement, but the price and aluminum bezel are points of contention.

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

13 of 29 specs differ
Diameter
Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition42.7mm
Seastar 100040mm
Power Reserve
Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition70h
Seastar 100080h
Water Resistance
Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition200m
Seastar 1000300m
MSRP
Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition$1,350
Seastar 1000$875

Full specifications

Case

4 specs
Diameter
42.7mm
40mm
Thickness
13.2mm
12.48mm
Lug-to-Lug
46.4mm
40mm
Water Resistance
200m
300m

Crystal & Dial

5 specs
Crystal Shape
Curved
Flat
AR Coating
Anti-reflective coating on inner surface
Yes
Dial Color
Black
Graded grey-black
Indices
Applied
Indexes
Lume
LumiBrite on hands, index(es) and bezel
Super-LumiNova ®

Movement

3 specs
Caliber
Seiko 6R35
Tissot Powermatic 80
Power Reserve
70h
80h
Jewels
24
25

Pricing

1 specs
MSRP
$1,350
$875
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