Side by side

Sugess Tourbillon Master S454vsLongines LONGINES SPIRIT FLYBACK PROTOTYPE

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

Tourbillon Master S454
SugessTourbillon Master S454
MSRP $999
LONGINES SPIRIT FLYBACK PROTOTYPE
LonginesLONGINES SPIRIT FLYBACK PROTOTYPE
MSRP $7,400

At a glance

12 of 29 specs differ
Diameter
Tourbillon Master S45441mm
LONGINES SPIRIT FLYBACK PROTOTYPE42mm
Power Reserve
Tourbillon Master S45440h
LONGINES SPIRIT FLYBACK PROTOTYPE40h
Water Resistance
Tourbillon Master S4545m
LONGINES SPIRIT FLYBACK PROTOTYPE100m
MSRP
Tourbillon Master S454$999
LONGINES SPIRIT FLYBACK PROTOTYPE$7,400

Full specifications

Case

7 specs
Diameter
41mm
42mm
Thickness
8.9mm
17mm
Lug-to-Lug
44.9mm
49.5mm
Lug Width
20mm
22mm
Material
Stainless Steel/Rose Gold
Stainless Steel
Water Resistance
5m
100m
Caseback
Display
Solid

Crystal & Dial

1 specs
Dial Color
Black
Green

Movement

3 specs
Caliber
ST8000
L791.4
Type
Manual
Automatic
Beat Rate
3 vph
28,800 vph

Pricing

1 specs
MSRP
$999
$7,400

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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.

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.

LONGINES SPIRIT FLYBACK PROTOTYPE

Owners widely praise the Longines Spirit Flyback Prototype for its attractive finishing, COSC-certified movement, and value as a flyback chronograph. Reviewers highlight its refined 39.5mm case and simplified dial, while some owners appreciate the reduced thickness and improved wearability compared to larger variants, with a lug-to-lug distance noted as potentially long for smaller wrists. The watch features a 68-hour power reserve and a bespoke L791.4 movement. However, the case thickness is a consistent point of discussion, with multiple sources citing 17mm, though some reviewers suggest thoughtful design makes it wear closer to 13.5-14mm. Owners are split on the dial's aesthetic, with some preferring previous configurations with gold subdial rings and concentric textures over the current flat matte dial and cut-off numbers. The leather strap is also noted as stiff and pinching.

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