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Home/Browse/Tissot/Seastar 1000 Powermatic 80 GMT
Tissot Seastar 1000 Powermatic 80 GMT — Black
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Tissot Seastar 1000 Powermatic 80 GMT

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.

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Seastar 1000 Powermatic 80 GMT
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1 Variant
Lume:Super-LumiNova ®
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Retail MSRPSold out
$1,375
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Alternatives
Case
46mm
Power Reserve
80h
Movement
Automatic
Water Resistance
300m
Crystal
Sapphire + AR
01

Case Dimensions

Diameter46mm
Thickness15.4mm
Lug-to-Lug—
Lug Width22mm
02

Case Build

MaterialStainless Steel
Water Resistance300m
03

Crystal & Dial

CrystalSapphire
ShapeDomed
AR CoatingYes
Dial ColorBlack
IndicesIndexes
LumeSuper-LumiNova ®
04

Movement

Caliber
Tissot Powermatic 80
TypeAutomatic
Beat Rate—
Power Reserve80 hours
Jewels—
HackingNo
Hand-WindingNo
ComplicationsTime only
05

Design Language

Dial styleTextured
Bezel24-hour (GMT)
Bracelet / strapLug-attached bracelet
HandsBaton
AI-detected from product image · 5/22/2026
In a nutshell

The Tissot Seastar 1000 Powermatic 80 GMT is an automatic gmt watch, with a 46mm stainless steel case, 15.4mm thick, powered by the Tissot Powermatic 80 movement and a 80-hour power reserve. Water resistance is rated to 300m, under a sapphire crystal. Manufacturer MSRP is $1,375.

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Tissot Seastar 1000 Powermatic 80 GMTvsTissot Gentleman Gold bezel→Tissot Seastar 1000 Powermatic 80 GMTvsTissot PRX→
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