Side by side

Bremont SupernovavsTissot Seastar 1000 Powermatic 80 GMT

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

Supernova
BremontSupernova
MSRP $8,250
Seastar 1000 Powermatic 80 GMT
TissotSeastar 1000 Powermatic 80 GMT
MSRP $1,375

At a glance

15 of 29 specs differ
Diameter
Supernova41mm
Seastar 1000 Powermatic 80 GMT46mm
Power Reserve
Supernova40h
Seastar 1000 Powermatic 80 GMT80h
Water Resistance
Supernova100m
Seastar 1000 Powermatic 80 GMT300m
MSRP
Supernova$8,250
Seastar 1000 Powermatic 80 GMT$1,375

Full specifications

Case

7 specs
Category
Chronograph
GMT
Diameter
41mm
46mm
Thickness
14.4mm
15.4mm
Lug-to-Lug
46mm
Lug Width
14.4mm
22mm
Material
316L Stainless Steel (DLC coated)
Stainless Steel
Water Resistance
100m
300m

Crystal & Dial

5 specs
Crystal Shape
Flat
Domed
AR Coating
Inner
Yes
Dial Color
Chronograph Bracelet
Black
Indices
Applied
Indexes
Lume
None
Super-LumiNova ®

Movement

2 specs
Caliber
Powermatic 80
Power Reserve
40h
80h

Pricing

1 specs
MSRP
$8,250
$1,375

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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.

Bremont Supernova

The Bremont Supernova is praised for its new ENG375 movement, big date, and power reserve indicator, with its 40mm steel case featuring mixed finishing and an integrated bracelet. Owners note good but not great lume, well-balanced proportions, and a premium feel for its price, despite a 173-gram weight. Some community members find the design derivative and the £8,000 price tag overly optimistic, with mixed views on the date window and crown guard. The proprietary Trip-Tick case construction offers shock protection, and the movement provides a 65-hour power reserve. Overall, owners and reviewers highlight the integrated bracelet and proprietary movement as key strengths of the Bremont Supernova.

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.

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