Side by side

Fortis Marinemaster M-40vsSugess Tourbillon Master S454

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

Marinemaster M-40
FortisMarinemaster M-40
MSRP $3,520
Tourbillon Master S454
SugessTourbillon Master S454
MSRP $999

At a glance

15 of 29 specs differ
Diameter
Marinemaster M-4040mm
Tourbillon Master S45441mm
Power Reserve
Marinemaster M-4038h
Tourbillon Master S45440h
Water Resistance
Marinemaster M-40300m
Tourbillon Master S4545m
MSRP
Marinemaster M-40$3,520
Tourbillon Master S454$999

Full specifications

Case

8 specs
Category
Diver
Chronograph
Diameter
40mm
41mm
Thickness
13mm
8.9mm
Lug-to-Lug
44.9mm
Lug Width
21mm
20mm
Material
Stainless Steel
Stainless Steel/Rose Gold
Water Resistance
300m
5m
Caseback
Solid
Display

Crystal & Dial

1 specs
Dial Color
Orange
Black

Movement

5 specs
Caliber
Sellita SW220-1
ST8000
Type
Automatic
Manual
Beat Rate
28,800 vph
3 vph
Power Reserve
38h
40h
Jewels
26
25

Pricing

1 specs
MSRP
$3,520
$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.

Fortis Marinemaster M-40

Owners praise the Fortis Amber Orange for its gorgeous appearance and strong wrist presence, noting its crazy lume and 70-hour power reserve. The Doxa SUB 300T, described as having a superb, eccentric design with a highly legible dial and functional no-decompression bezel, uses an ETA 2824-2 movement. However, the SUB 300T's 42.5mm case wears large and its 14mm thickness is not ideal for dress shirts, though it boasts 1,200m water resistance. On balance, owners appreciate the Fortis Amber Orange for its striking aesthetics and impressive lume.

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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