Side by side

Bremont SupernovavsSeestern S446 GMT

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

Supernova
BremontSupernova
MSRP $8,250
S446 GMT
SeesternS446 GMT
MSRP $299

At a glance

14 of 29 specs differ
Diameter
Supernova41mm
S446 GMT39.5mm
Power Reserve
Supernova40h
S446 GMT41hh
Water Resistance
Supernova100m
S446 GMT100m
MSRP
Supernova$8,250
S446 GMT$299

Full specifications

Case

6 specs
Category
Chronograph
GMT
Diameter
41mm
39.5mm
Thickness
14.4mm
13mm
Lug-to-Lug
47mm
Lug Width
14.4mm
20mm
Material
316L Stainless Steel (DLC coated)
316L Stainless Steel

Crystal & Dial

2 specs
Crystal Shape
Flat
Domed
Dial Color
Chronograph Bracelet
Cream

Movement

5 specs
Caliber
Seiko NH34A GMT
Beat Rate
28,800 vph
3 vph
Power Reserve
40h
41hh
Jewels
25
24
Complications
None
GMT, Date

Pricing

1 specs
MSRP
$8,250
$299

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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.

Seestern S446 GMT

Owners widely praise the Seestern S446 GMT for its stunning finishing and extreme value, with a sapphire crystal and adjustable clasp. The winding action is noted as buttery smooth, and the 39.5mm case size is considered very wearable. Some owners, however, flag the lume as a weak point and one owner found the bracelet clasp lacked sufficient micro-adjustment. The Seestern S446 GMT is considered an extreme value for the dollar. Overall, owners rate the Seestern S446 GMT highly for its exceptional finishing and value proposition at its price point.

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