Side by side

Bremont Supermarine 300MvsSugess Tourbillon Master S454

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

Supermarine 300M
BremontSupermarine 300M
MSRP $3,550
Tourbillon Master S454
SugessTourbillon Master S454
MSRP $999

At a glance

12 of 29 specs differ
Diameter
Supermarine 300M40mm
Tourbillon Master S45441mm
Power Reserve
Supermarine 300M40h
Tourbillon Master S45440h
Water Resistance
Supermarine 300M300m
Tourbillon Master S4545m
MSRP
Supermarine 300M$3,550
Tourbillon Master S454$999

Full specifications

Case

7 specs
Category
Diver
Chronograph
Diameter
40mm
41mm
Thickness
12mm
8.9mm
Lug-to-Lug
44.9mm
Material
904L Stainless Steel
Stainless Steel/Rose Gold
Water Resistance
300m
5m
Caseback
Solid
Display

Crystal & Dial

1 specs
Dial Color
Green
Black

Movement

3 specs
Caliber
BE-92AE
ST8000
Type
Automatic
Manual
Beat Rate
28,800 vph
3 vph

Pricing

1 specs
MSRP
$3,550
$999

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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 Supermarine 300M

The Bremont Supermarine 300M is praised for its comfortable 40mm and 42mm case sizes, with owners noting the 42mm wears well on smaller wrists due to its lug design. One owner highlights the 13mm thinness of the 40mm case, considered compact for a 300m diver. The watch is priced at $1375. On balance, owners and reviewers appreciate the Bremont Supermarine 300M for its wearability and compact dimensions, especially for a dive watch.

Sugess Tourbillon Master S454

Owners widely praise the Sugess Tourbillon Master S454 for its attractive dial finishing, sharp case edges, and the visual appeal of its genuine tourbillon, especially considering its price point. Specific strengths highlighted include a delicate 38mm size with 11.5mm thickness and a crisp winding feel. However, multiple owners note accuracy issues, with figures ranging from +6 to +11 seconds per day and one report of -12 seconds per day. Concerns are also raised about the movement's finishing upon close inspection, the lack of internal anti-reflective coating causing reflections, a small crown that makes winding cumbersome, and potential long-term durability and serviceability challenges. The 24-hour complication is not independently adjustable, and water resistance is limited to 50m. Overall, owners rate the Sugess Tourbillon Master S454 highly for its impressive tourbillon and finishing at the price, despite some noted accuracy and finishing caveats.

From video reviewers

The value proposition of a functional tourbillon movement under $600 is a significant strength. Reviewers noted issues with the bracelet and wearability.

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