Side by side

Seiko Prospex LX linevsTissot Seastar 1000 Powermatic 80 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 LX line

Owners widely report the dial's blue-green sunburst is phenomenal, and the sapphire glass features blue AR coating. Some owners feel the high price limits discounts and sales, with one AD noting extremely low sales due to the cost. One owner reported DLC peeling off a two-week-old watch, and another noted quality control issues like bezel inserts and fallen second hands. On balance, owners consider the Seiko Prospex LX line a nicely built watch, though pricing led to poor sales and its discontinuation.

Tissot Seastar 1000 Powermatic 80 GMT

Owners widely praise the Tissot Seastar 1000 Powermatic 80 GMT for its excellent build quality, smooth winding feel, and the reliable Powermatic 80 movement providing an 80-hour power reserve. Reviewers highlight its remarkable value under $700, comfortable wearability, and appealing case/dial ratio. Some owners note the bezel's functionality for tracking a second time zone and the need to adjust the hour hand for date setting, a characteristic of its "True" GMT function. The rubber strap is considered comparable to those found on significantly more expensive watches. However, concerns exist regarding the movement's serviceability due to potential plastic components and reliance on Swatch Group service centers. Some find the bezel font and dial spacing unappealing, while others question the mineral glass bezel insert as a cost-cutting measure compared to ceramic. Accuracy is generally reported as good, though not COSC certified, and lume intensity is described as average by one owner.

At a glance

15 of 29 specs differ
Diameter
Prospex LX line44.8mm
Seastar 1000 Powermatic 80 GMT46mm
Power Reserve
Prospex LX line72h
Seastar 1000 Powermatic 80 GMT80h
Water Resistance
Prospex LX line200m
Seastar 1000 Powermatic 80 GMT300m
MSRP
Prospex LX line$5,500
Seastar 1000 Powermatic 80 GMT$1,375

Full specifications

Case

5 specs
Diameter
44.8mm
46mm
Thickness
14.7mm
15.4mm
Lug-to-Lug
50.9mm
Material
Titanium
Stainless Steel
Water Resistance
200m
300m

Crystal & Dial

5 specs
Crystal Shape
Domed
AR Coating
Super-clear coating
Yes
Dial Color
Black
Indices
Indexes
Lume
LumiBrite on hands and index(es)
Super-LumiNova ®

Movement

4 specs
Caliber
5R66
Tissot Powermatic 80
Type
Spring Drive
Automatic
Power Reserve
72h
80h
Jewels
30
0

Pricing

1 specs
MSRP
$5,500
$1,375
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