Side by side

Tissot Seastar 1000 Powermatic 80 GMTvsTornek-Rayville Blakjak 12-hr GMT

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

Seastar 1000 Powermatic 80 GMT
TissotSeastar 1000 Powermatic 80 GMT
MSRP $1,375
Blakjak 12-hr GMT
Tornek-RayvilleBlakjak 12-hr GMT
MSRP $895

At a glance

11 of 29 specs differ
Diameter
Seastar 1000 Powermatic 80 GMT46mm
Blakjak 12-hr GMT42.5mm
Power Reserve
Seastar 1000 Powermatic 80 GMT80h
Blakjak 12-hr GMT42h
Water Resistance
Seastar 1000 Powermatic 80 GMT300m
Blakjak 12-hr GMT200m
MSRP
Seastar 1000 Powermatic 80 GMT$1,375
Blakjak 12-hr GMT$895

Full specifications

Case

5 specs
Category
GMT
Diver
Diameter
46mm
42.5mm
Thickness
15.4mm
13.2mm
Lug-to-Lug
46mm
49mm
Water Resistance
300m
200m

Crystal & Dial

3 specs
Crystal Shape
Domed
Flat
Indices
Indexes
Applied
Lume
Super-LumiNova ®
Superluminova

Movement

2 specs
Caliber
Powermatic 80
SII NH36
Power Reserve
80h
42h

Pricing

1 specs
MSRP
$1,375
$895

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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.

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.

Tornek-Rayville Blakjak 12-hr GMT

The Tornek-Rayville Blakjak 12-hr GMT is a 42.5mm stainless steel watch featuring a DLC-coated bezel, sapphire crystal, and a matte black dial with 12- and 24-hour scales. It is powered by a Seiko SII NH36 automatic movement, offering a 41-hour power reserve, and boasts 200 meters of water resistance. The dial includes a day/date complication and Super-LumiNova BGW9 lume. Overall, owners and reviewers highlight its robust build and functional military-inspired design as key strengths.

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